# A2L Items Library

• A2L Item 001 - Identifying the correct acceleration graph for a rolling ball on an incline.
• A2L Item 002 - True/false statements about a moving object's acceleration.
• A2L Item 003 - Identify situations in which a body is not accelerating.
• A2L Item 004 - Statements about the acceleration of a ball that is thrown vertically.
• A2L Item 005 - A baseball is shot into the air; compare its acceleration at different times on a picture.
• A2L Item 006 - Compare the average accelerations of different objects.
• A2L Item 007 - Determine how far a marble rolls across felt given some information about change in velocity.
• A2L Item 008 - Compare and interpret graphs of velocity vs. time for a toy rocket and payload.
• A2L Item 009 - Evaluate the effects of friction early in your trip, versus late in your trip, on the trip time.
• A2L Item 010 - Improving accuracy of freefall measurements.
• A2L Item 011 - Assess the validity of a solution procedure for airplane aborting takeoff.
• A2L Item 012 - Comparing accelerations of objects from their position vs. time graphs
• A2L Item 013 - Use a strobe diagram to tell when something is accelerating.
• A2L Item 014 - Assess the validity of a solution procedure for skateboarder on an incline.
• A2L Item 015 - Compare the accelerations of two different objects. Underscores importance of both magnitude and direction.
• A2L Item 016 - Use strobe diagrams to find average accelerations.
• A2L Item 017 - Identify the corrrect acceleration graph for a rolling ball kicked back up an incline
• A2L Item 018 - Identify the direction of acceleration when traveling in a vertical circle.
• A2L Item 019 - Identify velocity graph for cart on incline
• A2L Item 020 - Applying Newton's Third Law to bowling.
• A2L Item 021 - Identify the equal-and-opposite force (from Newton's Third Law) to the gravitation force.
• A2L Item 022 - Compare the travel times of two different masses travelling down differently-shaped ramps.
• A2L Item 023 - Early problem of child pulling dog in wagon with constant velocity.
• A2L Item 024 - Forensic physics in a car crash.
• A2L Item 025 - Examine some position/time graphs to find out which objects had a net force applied to them.
• A2L Item 026 - Order the extent of compression of an internal spring in a 2 mass system given the same total force and mass.
• A2L Item 027 - Qualitative consideration of the net force on a vertical spring toy.
• A2L Item 028 - Analyze the forces acting between a tow truck pushing a car.
• A2L Item 029 - Moving a chair by internal motions only.
• A2L Item 030 - Order cases by increasing tension in string attached to hanging block.
• A2L Item 031 - Identify the direction of the force caused by an accelerated object on the traversed surface.
• A2L Item 032 - Identify the graph of the vertical component of force on a ball rolling on a horizontal, then sloped surface.
• A2L Item 033 - Determine the presence of a horizontal force from a strobe diagram.
• A2L Item 034 - Determine the relative size of the net force from a strobe diagram.
• A2L Item 035 - Determine the presence of forces in addition to friction from a strobe diagram of the objects' motion.
• A2L Item 036 - Associate a strobe diagram with a verbal description of motion
• A2L Item 037 - Identify correct force graph for block dropped on a spring.
• A2L Item 038 - Compare the time for two different moving blocks to stop due to kinetic friction.
• A2L Item 039 - Specify motion of block at rest pulled by known tension.
• A2L Item 040 - Compare forces in the case of a hammer hitting a nail into wood.
• A2L Item 041 - Determine the ratio of masses for a pulley system to remain at rest.
• A2L Item 042 - Determine the motion of a pulley sustem at rest when the support position is moved.
• A2L Item 043 - Specifying the number of forces on a block in a stack.
• A2L Item 044 - Recognize the direction of the normal force on a ball on curved vertical track.
• A2L Item 045 - Compare tensions when there is no motion.
• A2L Item 046 - Select correct free body diagram for block on incline.
• A2L Item 047 - Compare the force on a water balloon in three different situations.
• A2L Item 048 - Identify the sources of force on a fly ball.
• A2L Item 049 - Identify the forces on a hanging monkey.
• A2L Item 050 - Consider statements about tension in a horizontal wire bearing a weight.
• A2L Item 051 - Identify size of friction force on rock on incline.
• A2L Item 052 - Identify position where spring force is maximum.
• A2L Item 053 - Compare the gravitational force on identical blocks in different situations.
• A2L Item 054 - Select the appropriate free body diagram for car accelerating on a highway.
• A2L Item 055 - Identify the forces on a ball thrown vertically at a point not its maximum.
• A2L Item 056 - Compare the normal force on identical blocks in several different situations.
• A2L Item 057 - Identify the correct velocity graph for ball rolling, first horizontally, then down an incline.
• A2L Item 058 - Identify bodies not accelerating
• A2L Item 059 - Compare accelerations from velocity-time graphs.
• A2L Item 060 - Recognize the direction of the net force on a ball on curved vertical track.
• A2L Item 061 - Compare the tension in wires supporting a picture frame.
• A2L Item 062 - Identify correct statements about an elastic collision between two bodies involving a spring between them.
• A2L Item 063 - Indicate the path of a rock dropped by someone on a merry-go-round.
• A2L Item 064 - Describe the change in angular velocity with change of mass.
• A2L Item 065 - Identify conserved quantities when rock is dropped from a rotating platform.
• A2L Item 066 - Indicate the path of a rock thrown radially from a rotating platform.
• A2L Item 067 - Identify the conserved quantities when a rock is thrown radially from a rotating platform.
• A2L Item 068 - Identify the principle for efficient problem solving.
• A2L Item 069 - Find final angular velocity when rock is thrown tangentially from a rotating platform initially at rest.
• A2L Item 070 - Identify the number of forces acting on a block.
• A2L Item 071 - How many forces do work on a block.
• A2L Item 072 - Specify work to reverse the motion of an object.
• A2L Item 073 - Specify the impulse needed to reverse an objects direction of motion.
• A2L Item 074 - Find the final velocity of perfectly inelastic collision of two cars.
• A2L Item 075 - Compare the impulse delivered to a car in two different collision situations.
• A2L Item 076 - Compare the work done on a car during two different collision situations.
• A2L Item 077 - Identify the correct statements regarding force, impulse, kinetic energy and work.
• A2L Item 078 - Find the velocity along the equator to keep the sun fixed in the sky.
• A2L Item 079 - Determine the velocity of a car from information about its displacement.
• A2L Item 080 - Find the final angular velocity when a bug on a rotating plate crawls to a new radius,
• A2L Item 081 - Identify the principle that leads to most efficient solution of the problem.
• A2L Item 082 - What is the maximum angular velocity that allows a bug to remain fixed on a rotating disk.
• A2L Item 083 - Describe the motion of a child on rotating disk after dropping a rock.
• A2L Item 084 - Identify which of two masses that slide down an inclines with friction has the larger speed at the bottom.
• A2L Item 085 - Indicate whether both objects in a collision ever travel with the velocity of the center of mass.
• A2L Item 086 - Specify the characteristics of the linear acceleration of a body having uniform angular velocity.
• A2L Item 087 - Specify the characteristics of the linear acceleration of a body having uniform angular acceleration.
• A2L Item 088 - Find the work done by a heated gas in a vertical piston.
• A2L Item 089 - Identify the correct assertion regarding the change of pressure in an expanding gas.
• A2L Item 090 - Identify the correct assertion regarding the change of temperature in an expanding gas.
• A2L Item 091 - Identify the correct statements regarding the energy of and heat flow between two bodies.
• A2L Item 092 - Identify the correct definition of heat.
• A2L Item 093 - Find the initial potential energy stored in a spring between two known masses given the final velocity of one of the masses.
• A2L Item 094 - Determine the friction force acting on a rolling disk pulled by a string wrapped about its circumference.
• A2L Item 095 - Determine the tension in a string wrapped around the disk and attached that holds a disk fixed on an incline.
• A2L Item 096 - Determine the friction force acting on a disk held fixed on an incline by a string wrapped around the disk and attached to the top of the incline.
• A2L Item 097 - Identify the correct relation between the tensions in two strings supporting a uniform bar.
• A2L Item 098 - Identify the tension in one of two strings of unequal length that are supporting a uniform rod.
• A2L Item 099 - Identify the correct statement about forces acting on a rod hinged to a wall and supported by a string.
• A2L Item 100 - Identify which mass has the larger speed after a spring pushes it along a rough surface.
• A2L Item 101 - Identify the correct motion of a spool pulled by a string passing over the top of the central axle.
• A2L Item 102 - Identify the correct motion of a spool pulled by a string passing along the bottom of the central axle.
• A2L Item 103 - Identify the correct motion of a spool pulled by a string passing at an angle to the bottom of the central axle.
• A2L Item 104 - Identify the correct statement regarding torque due to two forces.
• A2L Item 105 - What is the speed of a hoop rolling on an incline after its center has fallen a distance h?
• A2L Item 106 - Find the ratio of tensions in a system of two masses rotating about a center.
• A2L Item 107 - Determine the unknown mass given ratio of moment of inertia about two axes.
• A2L Item 108 - Determine the time for angular displacement given information about angular acceleration and velocity.
• A2L Item 109 - Estimate the heat needed to boil a cup of water.
• A2L Item 110 - Identify the final temperature of two bodies placed in thermal contact.
• A2L Item 111 - Identify the temperature reading that is the same on both the Fahrenheit and Celsius scales.
• A2L Item 112 - Indicate the sign of the work done on a gas during an isobaric compression process.
• A2L Item 113 - Identify the isobaric path.
• A2L Item 114 - Identify the final pressure after an ideal gas undergoes a free expansion.
• A2L Item 115 - Identify the final temperature after an ideal gas undergoes a free expansion.
• A2L Item 116 - Indicate the direction of the total electric field at the origin due to two rods.
• A2L Item 117 - Indicate the direction of the electric force on a charge.
• A2L Item 118 - Indicate the direction of the electric force on a charge.
• A2L Item 119 - Indicate the direction of the electric force on a charge.
• A2L Item 120 - Indicate the size of the electric force on a charge.
• A2L Item 121 - Indicate the direction of the electric force on a charge due to two other charges.
• A2L Item 122 - Identify the correct force diagram.
• A2L Item 123 - Identify the correct electric fields due to charges.
• A2L Item 124 - Identify the situation having greatest electric flux through a specified gaussian surface.
• A2L Item 125 - Identify the force on one block pushed by another.
• A2L Item 126 - Find the mass of the bottom block in a stack.
• A2L Item 127 - Given configurations of Gaussian surfaces and electric field lines, identify the situations having non-zero flux.
• A2L Item 128 - Identify the friction force on a block at rest on an incline.
• A2L Item 129 - Identify the correct relationship for potentials when the distance between charges changes.
• A2L Item 130 - Identify the friction force on a block at rest on an incline.
• A2L Item 131 - Specify the motion of a block on an incline given that a block of half the mass moves with constant speed.
• A2L Item 132 - Identify the correct relationship for total energy when the distance between charges changes upon release.
• A2L Item 133 - Recognize the direction of the acceleration of a ball on curved vertical track.
• A2L Item 134 - Identify the situation for which moving a positive charge from infinity to the origin would require the most work.
• A2L Item 135 - Select the situation for which the movement of a negative charge through an electric field results in the greatest increase of potential energy.
• A2L Item 136 - Identify changes on the normal force on an object in an elevator.
• A2L Item 137 - Determine the friction force on a slab from graphical information.
• A2L Item 138 - Determine the velocity of a block before a collision from information about the final state of the system.
• A2L Item 139 - Indicate which action takes the least work.
• A2L Item 140 - Indicate which charge configuration contains least potential energy.
• A2L Item 141 - Identify the block that travels further along a rough surface.
• A2L Item 142 - Identify the block that stops in least time.
• A2L Item 143 - Compare the speed of a block falling vertically to that of one sliding down a smooth incline.
• A2L Item 144 - Compare average speed of two masses traveling down different surfaces.
• A2L Item 145 - Compare the final speed of two masses traveling down different surfaces.
• A2L Item 146 - Identify the correct behavior of a body subject to the given potential energy function.
• A2L Item 147 - Identify the points of a potential energy function for which the force is zero.
• A2L Item 148 - Characterize the force associated with a potential energy function.
• A2L Item 149 - Identify the spring system with the largest potential energy.
• A2L Item 150 - Indicate the correct statement(s) regarding the work done moving a charge between to points having different electric potential.
• A2L Item 151 - Identify the ball reaching the end of its track first.
• A2L Item 152 - Identify the ball reaching the end of its track first.
• A2L Item 153 - Identify which vehicle receives the largest impulse during a collision.
• A2L Item 154 - Indicate the total distance traveled after a series of displacements.
• A2L Item 155 - Identify the total impulse received by a mass reversing direction due to hitting and compressing a spring.
• A2L Item 156 - Identify the principles needed to solve the problem.
• A2L Item 157 - Identify the correct statement about the impulse on two blocks due to the gravitational force.
• A2L Item 158 - Indicate the total displacement after a series of displacements.
• A2L Item 159 - Identify the final velocity after a totally inelastic collision.
• A2L Item 160 - Identify the appropriate principle for determining the final velocity after a totally inelastic collision.
• A2L Item 161 - Determine the speed of a runner who overtakes a slower runner.
• A2L Item 162 - Select the correct principle for efficient solution.
• A2L Item 163 - Identify the correct principle to solve the problem most efficiently.
• A2L Item 164 - Identify the correct principle to solve the problem most efficiently.
• A2L Item 165 - Identify the correct principle to solve the problem most efficiently.
• A2L Item 166 - Identify the correct principle to solve the problem most efficiently.
• A2L Item 167 - Identify the angular velocity of a mass reaching the bottom of a vertical circular track.
• A2L Item 168 - Estimate the average acceleration for a specified time interval from an acceleration/time graph.
• A2L Item 169 - Find instantaneous acceleration given a velocity/time graph.
• A2L Item 170 - Identify electrical quantities that change depending upon conductor shape.
• A2L Item 171 - Identify the configuration of charges having the lowest electrostatic potential at the origin.
• A2L Item 172 - Identify the torque due to two forces about a specified point.
• A2L Item 173 - Identify the situation having least angular momentum.
• A2L Item 174 - Identify the correct expression for the electric field a distance from the center of a ring of charge.
• A2L Item 175 - Identify the acceleration of a mass hanging from a string wound about a disk free to rotate about its center.
• A2L Item 176 - Identify the acceleration of a disk free to move and unwind.
• A2L Item 177 - Identify the angular acceleration of a disk free to move and unwind.
• A2L Item 178 - Determine the mass that would cause a disk to roll up a curb.
• A2L Item 179 - Identify the correct statement(s) regarding the magnetic field of a current carrying wire.
• A2L Item 180 - Identify locations where the total magnetic field due to two bar magnets is zero?
• A2L Item 181 - Identify the direction of the net force on a current carrying semicircular wire in a uniform B-field.
• A2L Item 182 - Identify the correct statements regarding an astronaut in space.
• A2L Item 183 - Identify the orientation for which a two block and spring system will jump highest.
• A2L Item 184 - Determine the acceleration of a hoop rolling down an incline.
• A2L Item 185 - Identify the torque about one end of a uniform rod suspended by two strings of unequal length.
• A2L Item 186 - Determine the mass of a rod hinged to a wall and supported by a string.
• A2L Item 187 - Determine the acceleration of a rolling disk pulled by a string wrapped about its circumference.
• A2L Item 188 - Determine the acceleration of a disk rolling down an incline.
• A2L Item 189 - Determine the friction force acting on a disk rolling down an incline.
• A2L Item 190 - Identify the work done on a gas during a thermodynamic cycle.
• A2L Item 191 - Identify the correct statement about the comparison of the internal energy of states of a gas.
• A2L Item 192 - Identify the graphical representation of an isobaric compression process.
• A2L Item 193 - Determine the heat extracted during one portion of a thermodynamic cycle.
• A2L Item 194 - Identify the correct assertion regarding process quantities for a thermodynamic cycle.
• A2L Item 195 - Compare the heat for two different thermodynamic paths between two temperatures.
• A2L Item 196 - Indicate the situation in which a moving charge in a magnetic field travels the greatest distance.
• A2L Item 197 - Indicate the situation in which a moving charge in a magnetic field has the largest displacement in time T.
• A2L Item 198 - Indicate how a negative charge should move in a magnetic field to have a force in the direction specified.
• A2L Item 199 - Indicate the direction of the electric field at the origin due to two rods.
• A2L Item 200 - Identify the correct statement(s) regarding a charged particle in a region having both an electric and magnetic field.
• A2L Item 201 - Indicate the configurations of uniformly charged rods for which the electric field at the origin is along the x-axis.
• A2L Item 202 - Indicate the configurations of uniformly charged rods for which the electric field at the origin has non-zero components in both the x and y directions.
• A2L Item 203 - Indicate the charge situation that can account for a specified field constraint.
• A2L Item 204 - Identify the induced charge on the surface of a cavity in a conductor.
• A2L Item 205 - Identify the field inside a charge-free cavity lying inside a conductor.
• A2L Item 206 - Identify the total surface charge density on a charged cylindrical conductor with a charged wire lying along its axis.
• A2L Item 207 - Compare work done on a charge as it moves along different paths in the presence of other fixed charges.
• A2L Item 208 - Identify points around a physical dipole having zero electric field.
• A2L Item 209 - Identify the correct graph of the x-component of the electric field.
• A2L Item 210 - Identify the correct graph of the x-component of the electric field.
• A2L Item 211 - Identify the acceleration of a rotating mass after having to determine the velocity.
• A2L Item 212 - Identify the distributed charge configuration having the larges electric field at the origin.
• A2L Item 213 - Indicate the electric field due to a uniformly charged rod at a point along its axis some distance from its end.
• A2L Item 214 - Identify the correct statement(s) regarding flux.
• A2L Item 215 - Indicate the truth or falsity of a statement regarding the implication of flux for the electric field on a surface.
• A2L Item 216 - Indicate the truth or falsity of a statement regarding the relationship between the electric field and potential at a point.
• A2L Item 217 - Indicate the changes in stored charge, potential difference and stored energy in an isolated capacitor when a dielectric is inserted between the plates.
• A2L Item 218 - Identify the changes in the charge, potential and stored energy when a charged isolated capacitor is connected to another capacitor.
• A2L Item 219 - dentify the change in charge, voltage and stored energy when a charged isolated capacitor is connected to another in parallel.
• A2L Item 220 - Identify the object having lowest resistance.
• A2L Item 221 - Identify the correct comparison between the voltages at two different points in a circuit.
• A2L Item 222 - Identify the correct relationships regarding currents in a circuit.
• A2L Item 223 - Identify the consequence of connecting a second bulb in parallel in a circuit.
• A2L Item 224 - Identify the consequence of connecting a second bulb in series in a circuit.
• A2L Item 225 - Identify the brighter of two bulbs having different wattages in a series circuit.
• A2L Item 226 - Identify the objects experiencing a force as a bar magnet moves past a point charge.
• A2L Item 227 - Identify the motion of a charge released from rest in external E and B fields.
• A2L Item 228 - Identify the motion of a charge with initial velocity in external E and B fields.
• A2L Item 229 - Identify the direction of the magnetic field at the center of a current loop.
• A2L Item 230 - Identify the correct expression for the magnetic field at the center of a current loop.
• A2L Item 231 - Identify the current configuration that gives maximum magnetic field at a specified point.
• A2L Item 232 - Identify the correct assertion regarding the field due to a current segment.
• A2L Item 233 - Identify the current configuration causing the largest magnetic field at a specified point.
• A2L Item 234 - Identify the correct statement(s) regarding the force between two current carrying wire segments.
• A2L Item 235 - Identify the correct statement(s) regarding a conducting bar moving through a uniform magnetic field.
• A2L Item 236 - Identify the effects on a conducting bar moving through a magnetic field on rails.
• A2L Item 237 - Identify the effects on a conducting bar resting on rails as a bar magnet is dropped through the circuit.
• A2L Item 238 - Identify the situations having an induced Emf.
• A2L Item 239 - Identify the situations having an induced current flowing clockwise.
• A2L Item 240 - Identify the resistor dissipating the most power.
• A2L Item 241 - Identify the circuit whose battery does more work charging a capacitor.
• A2L Item 242 - Identify the circuit whose battery does more work establishing a current through an inductor.
• A2L Item 243 - Identify the correct values of the Amperian loop integrals.
• A2L Item 244 - A loop of wire moves near a long current-carrying wire. When is the current in the loop clockwise?
• A2L Item 245 - Identify the electrical quantities that change when a metallic cylinder is placed in an isolated capacitor.
• A2L Item 246 - Identify the electrical quantities that change when a conducting cylinder is removed from between the plates of a capacitor.
• A2L Item 247 - Identify the correct expression for the energy stored in a capacitor.
• A2L Item 248 - Identify the correct expression for the energy stored in an inductor.
• A2L Item 249 - Identify the correct amount of energy dissipated while charging a capacitor.
• A2L Item 250 - Identify the total energy dissipated in a resistor as an L-R circuit reaches maximum current.
• A2L Item 251 - Identify the circuit that is equivalent to the initial behavior of an RC circuit.
• A2L Item 252 - Identify the circuit that is equivalent to the long term behavior of an RC circuit.
• A2L Item 253 - Identify the circuit that is equivalent to the initial behavior of an RL circuit.
• A2L Item 254 - Identify the circuit that is equivalent to the behavior of an RL circuit after a long time.
• A2L Item 255 - Indicate the direction of the electric field at the origin due to 4 charges.
• A2L Item 256 - Indicate the direction of the electric field at the origin due to 4 charges.
• A2L Item 257 - Indicate the direction of the electric field at the origin due to 4 charges.
• A2L Item 258 - Identify which of two travelers take the least time to travel the same distance.
• A2L Item 259 - Identify the location of an object at a specific time given a plot of velocity versus time.
• A2L Item 260 - Identify the displacement of an object at a specific time given a plot of velocity versus time.
• A2L Item 261 - Identify the spring having the largest spring constant.
• A2L Item 262 - Identify the possible consequences of a collision.
• A2L Item 263 - Identify the cart exerting the larger force.
• A2L Item 264 - An object's motion is described by the graph:
• A2L Item 265 - An object's motion is described by the graph:
• A2L Item 266 - An object's motion is described by the graph:
• A2L Item 267 - An object's motion is described by the graph:
• A2L Item 268 - An object's motion is described by the graph:
• A2L Item 269 - An object's motion is described by the graph:
• A2L Item 270 - A person throws a ball straight up. The ball rises to a maximum height
• A2L Item 271 - Jane is riding in a hot air balloon that is rising vertically at a
• A2L Item 272 - Jane is riding in a hot air balloon that is rising vertically at a
• A2L Item 273 - Jane is riding in a hot air balloon that is rising vertically at a
• A2L Item 274 - Two cars have a race. Car A drives with constant speed of 20 m/s. Car B
• A2L Item 275 - Two cars have a race. Car A drives with constant speed of 20 m/s. Car B
• A2L Item 276 - A pendulum is released from rest at position A and swings toward the
• A2L Item 277 - In the drawing above T1 = 10 N. The masses and strings are the same. The value of T2 is:
• A2L Item 278 - When a force F is applied to a mass of 2 kg, the mass accelerates with 6.3 m/s2. When the same force is applied to an unknown mass the acceleration is 9 m/s2. Assume no friction. The value of the mass is:
• A2L Item 279 - An applied force FA pushes a block of mass m up a rough incline having coefficient of kinetic friction μk. The friction force on the block is:
• A2L Item 280 - A student suggests that an unknown mass can be measured by placing a known mass on a frictionless incline and measuring the acceleration. Then place the unknown mass on the same incline and measure the acceleration. From this information you can find the value of the new mass. Will this work?
• A2L Item 281 - A string attached to an 8 kg mass is passed over a frictionless pulley and attached to a 2 kg mass as shown. What is the normal force on the 8 kg block?
• A2L Item 282 - A string attached to an 8 kg mass is passed over a frictionless pulley and attached to a 2 kg mass as shown. What is the tension in the rope supporting the pulley?
• A2L Item 283 - Consider the situations shown. Let m < M. Which spring has the largest spring force?
• A2L Item 284 - Two blocks with mass m2>m1 sit on a horizontal surface having friction. Both blocks are pulled with the same constant speed, v, by a rope under tension. Which tension does the most work moving the block a distance D along the surface?
• A2L Item 285 - Two blocks with mass m2>m1 sit on a horizontal surface having friction. Both blocks are pulled with a constant speed, but v2 < v1, by a rope under tension. Which tension does the most work moving the block a distance D along the surface?
• A2L Item 286 - Two blocks with mass m2 > m1 sit on a horizontal surface having friction. Both blocks are pulled with a constant speed, but v2 < v1, by a rope under tension. Which tension does the most work moving the block a distance D along the surface?
• A2L Item 287 - A ball is thrown from the top of a tall building with an initial
• A2L Item 288 - A block of mass 2 kg travels along a horizontal frictionless surface
• A2L Item 289 - A block of mass 2 kg travels along a horizontal frictionless surface
• A2L Item 290 - A ball is thrown from the top of a tall building with an initial
• A2L Item 291 - A ball is thrown from the top of a tall building with an initial
• A2L Item 292 - A penny is lying on the bottom of a glass of water. The size of the penny appears to be?
• A2L Item 293 - Consider moving a positive charge from point P to the origin along the
• A2L Item 294 - A penny is lying on the bottom of a glass of water. The position of the
• A2L Item 295 - Refraction occurs at the interface between two transparent media
• A2L Item 296 - An object is located 8 cm away from, and near the optical axis of, a converging lens having focal length 10 cm. The image of the object is:
• A2L Item 297 - Consider the four patterns for electric field lines. Assuming there are no charges within the regions shown, which represent(s) a possible electric field?
• A2L Item 298 - A rainbow appears on an oil slick or soap bubble due to:
• A2L Item 299 - The phenomenon of interference arises due to:
• A2L Item 300 - Two light rays will interfere only if:
• A2L Item 301 - A particular object appears to be red. The reason it appears red is.
• A2L Item 302 - The sun appears to be yellow when overhead because:
• A2L Item 303 - The sky appears to be blue during the day because:
• A2L Item 304 - The sun appears larger at sunset then it does overhead because of:
• A2L Item 305 - Desert mirages are inverted images. From this, what can we conclude about the index of refraction of hot air compared to cold air?