The Wizard Test Maker - Iona Physics

1 Mid-Year Review1. A blinking light of constant period is situated ona lab cart. Which diagram best represents a photograph of the light as the cart moves withconstant velocity?(1)(2)(3)(4)2. A baseball pitcher throws a fastball at 42 metersper second. If the batter is 18 meters from thepitcher, approximately how much time does ittake for the ball to reach the batter?(1) s(3) s(2) s(4) s3. An object is uniformly accelerated from rest to aspeed of 25 meters per second in 10 seconds. Theacceleration of the object is(1) m/s2(3) m/s2(2) m/s2(4) m/s24. Which graph best represents the motion of afreely falling body near the Earth's surface?(1)(3)(2)(4)5. A rock dropped off a bridge takes 5 seconds tohit the water. Approximately what was the rock'svelocity just before impact?(1) 5 m/s(3) 50 m/s(2) 2 m/s(4) 125 m/s6.

2 The graph below represents the motion of anobject traveling in a straight line as a function oftime. What is the average speed of the objectduring the first four seconds?(1) 1 m/s(3) m/s(2) 2 m/s(4) 0 m/s7. If the speed of a moving object is doubled, whichquantity associated with the object must alsodouble?(1) its momentum(2) its kinetic energy(3) its acceleration(4) its gravitational potential energy8. A 2-newton force acts on a mass. If themomentum of the mass changes by , the force acts for a time of(1) 8 sec.(3) 60 sec.(2) 30 sec.(4) 120 A force of 10. Newtons acts on an object second. What force, acting on the objectfor second, would produce the sameimpulse?(1) N(3) N(2) N(4) 10. NPage 110. As shown in the diagrams below, a lump of claytravels horizontally to the right toward a block atrest on a frictionless surface.

3 Upon collision, theclay and the block stick together and move to to the total momentum of the clay andthe block before the collision, the momentum ofthe clay-block system after the collision is(1) less(3) the same(2) greater11. Two disk magnets are arranged at rest on afriction less horizontal surface as shown in thediagram below. When the string holding themtogether is cut, they move apart under a magneticforce of repulsion. When the diskreaches a speed of meters per second, what isthe speed of the disk?(1) m/s(3) m/s(2) m/s(4) m/s12. Which graph best represents the motion of anobject that hasno unbalanced force acting on it?(1)(3)(2)(4)13. An 800-newton person is standing in an elevator. If the upward force of the elevator on the personis 600 Newtons, the person is(1) at rest(2) accelerating upward(3) accelerating downward(4) moving downward at constant speed14.

4 Two forces are applied to a blockon a frictionless horizontal surface, as shown inthe diagram acceleration of the block is(1) m/s2 to the right(3) m/s2 to theright(2) m/s2 to the left(4) m/s2 to the left15. If the Earth were twice as massive as it is now,then the gravitational force between it and theSun would be(1) the same(3) half as great(2) twice as great(4) four times as great16. As a satellite is accelerated away from the Earthby a rocket, the satellite's mass(1) decreases(3) remains the same(2) increases17. A astronaut weighs 96 Newtons onthe surface of the Moon. The acceleration due togravity on the Moon is(1) m/s2(3) m/s2(2) m/s2(4) m/s2 Mid-Year ReviewPage 218. The diagram at the rightrepresents two concurrent forcesacting on a point. Which vectorbest represents their resultant?(1)(3)(2)(4)19.

5 A man walks 40 meters north, then 70 meterseast, and then 40 meters south. What is hisdisplacement from the starting point?(1) 150 meters east(3) 70 meters east(2) 150 meters west(4) 70 meters diagram below shows a child pulling a friend on a sled by applying a force on thesled rope at an angle of 40. with the horizontalThe vertical component of the force is approximately(1) 510 N(2) 230 N(3) 190 N(4) 32 NMid-Year ReviewPage 321. Base your answer to the following question onthe diagram below which shows a 1-kilogrammass and a 2-kilogram mass being dropped froma building 100 meters down, the acceleration is(1) greater for the 1-kilogram mass(2) greater for the 2-kilogram mass(3) the same for both masses22. Above a flat horizontal plane, an arrow,A, isshot horizontally from a bow at a speed of 50meters per second, as shown in the diagrambelow.

6 A second arrow,B, is dropped from thesame height and at the same instant asA is air friction, compared to the amountof timeA takes to strike the plane, the amount oftimeB takes to strike the plane is(1) less(3) the same(2) greater23. Four different balls are thrown horizontally offthe top of four cliffs. In which diagram does theball have the shortest time of flight?(1)(3)(2)(4)24. A bullet is fired from a rifle with a muzzlevelocity of 100. meters per second at an angle of30. up from the horizontal. What is themagnitude of the vertical component of themuzzle velocity?(1) m/s(3) 87. m/s(2) 50. m/s(4) 100. m/s25. The diagram below shows a baseball being hitwith a bat. Angle represents the angle betweenthe horizontal and the ball's initial direction value of would result in the balltraveling the longest horizontal distance?

7 [Neglect air resistance.](1) 30 (3) 60 (2) 45 (4) 75 Mid-Year ReviewPage 426. The diagramto the rightrepresents abicycle andrider travelingto the right ata constantspeed. A ballis droppedfrom the handof the set of graphs best represents thehorizontal motion of the ball relative to theground? [Neglect air resistance.](1)(2)(3)(4)27. The work done in raising an object must result inan increase in the object's(1) internal energy(2) kinetic energy(3) gravitational potential energy(4) heat energy28. When gamma radiation is emitted from anucleus, the stability of the nucleus(1) decreases(3) remains the same(2) increases29. Each of the blocks in the diagrams below is lifted vertically for the distance indicated. Whichblock will gain the most gravitational potentialenergy?(1)(3)(2)(4)30. A girl rides an escalator that moves her upwardat constant speed.

8 As the girl rises, how do hergravitational potential energy and kinetic energychange?(1) Gravitational potential energy decreases andkinetic energy decreases.(2) Gravitational potential energy decreases andkinetic energy remains the same.(3) Gravitational potential energy increases andkinetic energy decreases.(4) Gravitational potential energy increases andkinetic energy remains the A student pulls a block meters along ahorizontal surface at constant velocity. Thediagram below shows the components of theforce exerted on the block by the much work is done against friction?(1) 18 J(3) 30. J(2) 24 J(4) 42 JMid-Year ReviewPage 532. An electrical heater raises the temperature of a measured quantity of water. The water absorbs 6,000 joules of energy from the heater in seconds. What is the minimum power supplied to the heater?

9 (1) x 102 W(3) x 105 W(2) x 102 W(4) x 103 W33. The diagram below shows a cart at four positionsas it moves along a frictionless track. At whichpositions is the sum of the potential energy andkinetic energy of the cart the same?(1)A andB , only(2)B andC, only(3)C andD, only(4) all positions,A throughD34. In the accompanying diagram, a at pointA has a potential energy of is the potential energy of the sphere atpointB, halfway down the incline?(1) J(3) J(2) J(4) J35. If the velocity of a moving object is doubled, theobject's kinetic energy is(1) unchanged(3) doubled(2) halved(4) quadrupled36. When the speed of an object is halved, its kineticenergy is(1) quartered(3) the same(2) halved(4) doubled37. In the diagram below, the distance betweenpointsA andB on a wave is wave must have(1) an amplitude of m(2) an amplitude of m(3) a wavelength of m(4) a wavelength of m38.

10 In the diagram below, which wave has the largestamplitude?(1)A(3)C(2)B(4)D39. When a transverse wave is moving through amedium, what is the action of the particles of themedium?(1) They travel through the medium with thewave.(2) They vibrate in a direction parallel to thedirection in which the wave is moving.(3) They vibrate in a direction perpendicular tothe direction in which the wave is moving.(4) They remain at ReviewPage 640. The diagram below shows a piston being movedback and forth to generate a wave. The pistonproduces a compression,C, every frequency of this wave is(1) Hz(3) x 10 1 Hz(2) Hz(4) x 102 Hz41. The frequency of a light wave is x 1014 is the period of the wave?(1) x 106 s(3) x10 7 s(2) x 10 15 s(4) x 10 14s42. As the period of a wave decreases, the wave'sfrequency(1) decreases(3) remains the same(2) increases43.