Download ANSWERS FOR AMSTI FINAL EXAM

ANSWERS FOR AMSTI FINAL EXAM
1.
2.
3.
4.
A PUSH OR A PULL.
CANCEL EACH OTHER OUT.
CAUSE THE MOTION OF A BODY TO CHANGE.
A SYSTEM WHERE NO ENERGY GOES IN OR OUT, BUT STAYS THE
SAME.
5. CHANGES IN SPEED, POSITION, TEMPERATURE.
6. THE ABILITY TO DO WORK.
7. THE LIQUID OR PASTE IN A BATTERY INTO WHICH THE ELECTRODES
ARE SET.
8. FLOW FROM THE POSITIVE TERMINAL.
9. THE ENERGY STAYS STORED UNTIL THE BATTERY IS CONNECTED
TO A CIRCUIT.
10. THE CHEMICAL IN A WET-CELL IS A LIQUID, THE CHEMICAL IN A
DRY-CELL IS A PASTE.
11. AN ELECTRIC CURRENT IS RUN BACKWARDS THROUGH THE
BATTERY.
12. A DEVICE WITH BLADES THAT TURNS A GENERATOR TO PRODUCE
ELECTRICITY.
13. ENERGY STORED DUE TO ITS POSITION OR CONDITION.
14. ENERGY OF MOTION.
15. THE MEASURE OF THE AMOUNT OF MATTER IN A BODY.
16. THE MEASURE OF THE FORCE OF GRAVITY ON AN OBJECT.
17. THE UNIT OF FORCE IN THE METRIC SYSTEM.
18. THE UNIT OF WORK AND ENERGY IN THE METRIC SYSTEM.
19. AN ENGLISH UNIT OF MASS.
20. THE FORCE EXERTED BY A RUBBER BAND WHEN STRETCHED.
21. THE MASS AND DISTANCE BETWEEN OBJECTS.
22. THE GRAVITATIONAL FORCE WILL BE ONE-FOURTH.
23. GRAMS, KILOGRAMS.
24. A FORCE THAT OPPOSES THE MOTION OF AN OBJECT.
25. THE TENDENCY OF AN OBJECT TO KEEP MOVING IF NO FORCE ACTS
ON IT.
26. THE RATE OF CHANGE OF POSITION OF AN OBJECT.
27. OCCURS WHEN ACTING FORCES CAUSE THE SPEED OF A FALLING
OBJECT TO REMAIN CONSTANT.
28. THE FORCE THAT OPPOSES AN OBJECT’S MOVEMENT THROUGH AIR.
29. A NUMBER THAT IS USED TO PREDICT FRICTIONAL FORCES
BETWEEN TWO SURFACES.
30. SURFACE TYPES IN CONTACT.
31. OCCURS WHEN TWO OBJECTS RUB AGAINST EACH OTHER.
32. NONE – IT IS A PURE NUMBER WITHOUT UNITS.
33. ATOMIC INTERACTIONS BETWEEN SUBSTANCES.
34. THEY COMBINE TO PRODUCE A LARGER VOLTAGE.
35. THE VOLTAGE IS EQUAL TO THAT OF ONE BATTERY.
36. NO CURRENT WILL FLOW THROUGH.
37. POSITIVE TO POSITIVE TERMINALS.
38. THE METRIC UNIT FOR WORK.
39. WORK = FORCE x DISTANCE (W = FD).
40. FORCE = WORK/DISTANCE (F = W/D).
41. IF A FORCE IS APPLIED TO AN OBJECT AND IT MOVES.
42. W = FD = 5.0 N x 2.0 M = 10 N-M = 10 JOULES (J).
43. THE RATE AT WHICH WORK IS DONE.
44. THE COMMON UNIT OF MEASURE FOR POWER.
45. ONE JOULE PER SECOND.
46. POWER.
47. ENERGY.
48. POWER = WORK/TIME (P =W/T).
49. A WATT.
50. IN HORSEPOWER (hp).
51. EFFORT FORCE.
52. EFFORT DISTANCE.
53. LOAD FORCE.
54. LOAD DISTANCE.
55. SLOPE.
56. WORK = FORCE x DISTANCE (W = FD).
57. DECREASE IT.
58. DECREASE IT.
59. INCREASE IT.
60. EFFORT DISTANCE.
61. VERTICAL DISTANCE.
62. LOAD DISTANCE.
63. RISE/RUN.
64. MAGNITUDE AND DIRECTION.
65. PULLEY SYSTEMS.
66. DIRECTION.
67. A FLAG POLE.
68. DECREASE.
69. SUPPORTING ROPES.
70. EFFORT FORCE.
71. TORQUE.
72. FULCRUM.
73. FIRST CLASS.
74. SECOND CLASS.
75. THIRD CLASS.
76. IDEAL AND ACTUAL.
77. IDEAL MECHANICAL ADVANTAGE (IMA).
78. ACTUAL MECHANICAL ADVANTAGE (AMA).
79. 10.
80. 50.
81. 5.
82. 4.
83. AMA = LOAD FORCE/EFFORT FORCE.
84. IMA = EFFORT DISTANCE/LOAD DISTANCE.
85. IMA = EFFORT DISTANCE/LOAD DISTANCE.
86. THE NUMBER OF SUPPORTING ROPES.
87. DIVIDE THE EFFORT ARM LENGTH BY THE RESISTANCE ARM
LENGTH.
88. MA = EFFORT ARM LENGTH/RESISTANCE ARM LENGTH.
89. BECAUSE OF FRICTIONAL FORCES ACTING ON THEM.
90. INPUT WORK IS GREATER.
91. EFFICIENCY = OUTPUT WORK/INPUT WORK.
92. OUTPUT WORK = LOAD FORCE x LOAD DISTANCE.
93. INPUT WORK = EFFORT FORCE x EFFORT DISTANCE.
94. SPEED IS DEFINED AS A CHANGE IN POSITION DIVIDED BY THE TIME.
95. AVERAGE SPEED IS CALCULATED BY DIVIDING THE DISTANCE AN
OBJECT TRAVELS BY THE TIME IT TAKES TO TRAVEL THAT
DISTANCE.
96. IT IS ACCELERATING.
97. NEWTON’S FIRST LAW OF MOTION – AN OBJECT IN MOTION WILL
REMAIN IN MOTION AND AN OBJECT AT REST WILL REMAIN AT
REST UNTIL ACTED UPON BY AN OUTSIDE FORCE.
98. NEWTON’S SECOND LAW OF MOTION – FORCE EQUALS MASS TIMES
ACCELERATION (F = MA).
99. NEWTON’S THIRD LAW OF MOTION – FOR EVERY ACTION THERE IS
AN EQUAL AND OPPOSITE REACTION.
100.
INERTIA.