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Honors or AP Physics 1 Summer Assignment (part 1) Name _____________________ Note to Parent: your child is asked to complete the following without the help of the internet or other reference material. They may discuss the statements with you or other family members, but I am trying to get an understanding of the students’ current thinking about physics. Student: have your parent read the above and then sign here below: Parent signature: ________________________________ Mark either as True or False. Some may require certain conditions to be true or false. If so, state the conditions. 1. History has no place in science. 2. Two objects side by side must have the same speed. 3. Acceleration and velocity are always in the same direction. 4. Velocity is a force. 5. If velocity is zero, then acceleration must be zero too. 6. Heavier objects fall faster than lighter ones. 7. Acceleration is the same as velocity. 8. The acceleration of a falling object depends upon its mass. 9. Freely falling bodies can only move downward. 10. There is no gravity in a vacuum. 11. Gravity only acts on things when they are falling. 12. Forces are required for motion with constant velocity. 13. Inertia deals with the state of motion (at rest or in motion). 14. All objects can be moved with equal ease in the absence of gravity. 15. All objects eventually stop moving when the force is removed. 16. Inertia is the force that keeps objects in motion. 17. If two objects are both at rest, they have the same amount of inertia. 18. Velocity is absolute and not dependent on the frame of reference. 19. Action-reaction forces act on the same body. 20. There is no connection between Newton's Laws and kinematics. 21. The product of mass and acceleration, ma, is a force. 22. Friction can't act in the direction of motion. 23. The normal force on an object is equal to the weight of the object by the 3rd law. 24. The normal force on an object always equals the weight of the object. 25. Equilibrium means that all the forces on an object are equal. 26. Equilibrium is a consequence of the 3rd law. 27. Only animate things (people, animals) exert forces; passive ones (tables, floors) do not exert forces. 28. Once an object is moving, heavier objects push more than lighter ones. 29. Newton's 3rd law can be overcome by motion (such as by a jerking motion). 30. A force applied by, say a hand, still acts on an object after the object leaves the hand. 31. The Moon is not falling. 32. The Moon is not in free fall. 33. The force that acts on apple is not the same as the force that acts on the Moon. 34. The gravitational force is the same on all falling bodies. 35. There are no gravitational forces in space. 36. The gravitational force acting on the Space Shuttle is nearly zero. 37. The gravitational force acts on one mass at a time. 38. Moon stays in orbit because the gravitational force on it is balanced by the centrifugal force acting on it. 39. Weightlessness means there is no gravity. 40. The Earth's spinning motion causes gravity. 41. Energy gets used up or runs out. 42. Something not moving can't have any energy. 43. A force acting on an object does work even if the objects does not move. 44. Energy is destroyed in transformations from one type to another. 45. Energy can be recycled. 46. Gravitational potential energy is the only type of potential energy. 47. When an object is released to fall, the gravitational potential energy immediately becomes all kinetic energy. 48. Energy is not related to Newton's laws. 49. Energy is a force. 50. Momentum is not a vector. 51. Conservation of momentum applies only to collisions. 52. Momentum is the same as force. 53. Moving masses in the absence of gravity do not have momentum. 54. The center of mass of an object must be inside the object. 55. Center of mass is always the same as the center of gravity. 56. Momentum is not conserved in collisions with "immovable" objects. 57. Momentum and kinetic energy are the same. 58. Circular motion does not require a force. 59. Centrifugal forces are real. 60. An object moving in circle with constant speed has no acceleration. 61. An object moving in a circle will continue in circular motion when released. 62. An object is circular motion will fly out radially when released. 63. Any force acting on an object will produce a torque. 64. Objects moving in a straight line cannot have angular momentum. 65. Torque is the same as force and is in same direction. 66. Angular momentum is not a vector. 67. The direction of angular momentum is in direction of linear momentum. 68. Planetary orbits are circles. 69. The speed of a planet in orbit never changes. 70. An object must be at both foci of an elliptical orbit. 71. All the planets move in their orbits with the same speed. 72. No work is done on orbiting planets by the sun. 73. The orbits of the planets lie precisely in the same plane. 74. All the planets revolve about sun with the same period. 75. Revolution is the same as rotation. 76. Spacecraft travel in straight lines from one planet to another. 77. Spacecraft can be launched anytime to travel from one planet to another. 78. Spacecraft are not affected by the sun. 79. Motion relative to Earth is same as motion relative to the sun. 80. Jets can fly in space. 81. Spacecraft in orbit about Earth don't follow a sinusoidal path relative to the sun. 82. Rockets need something (air) to push against. 83. Space is not something. 84. Black holes are big. 85. Light always travels in straight lines. 86. Black holes exert a greater gravitational force on distant objects than the star from which it was formed. 87. Observations made in a gravitational field are different than those made in a system undergoing constant acceleration. 88. Things in space make sounds. 89. If the Sun were to become a black hole, the Earth would get sucked into it. 90. For a pendulum, the period of oscillation depends on the amplitude. 91. For a pendulum, the restoring force is constant at all points in the oscillation. 92. The heavier a pendulum bob, the shorter its period. 93. All pendulum motion is perfect simple harmonic motion, for any initial angle. 94. Harmonic oscillators go forever. 95. A pendulum accelerates through the lowest point of its swing. 96. Amplitude of oscillations is measured peak-topeak. 97. The acceleration is zero at the end points of the motion of a pendulum.