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Motion, Forces And Energy Unit Test

37 Questions  I  By CharlieC23
Energy Quizzes & Trivia
Chapters: 1, 2, 5 and 6

  
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1.  The law of conservation of energy states that when one form of energy is converted to another, SOME energy is destroyed. 
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B.
2.  Potential energy that depends on height is gravitational potential energy.
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B.
3.  Unless an object at rest is acted upon by a force, it stays at rest due to its 
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B.
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D.
4.  Temperature is a measure of the average potential energy of each particle within an object.
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B.
5.  A satellite in orbit around Earth is always falling toward Earth.
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B.
6.  A girl throws a ball 15m into the air.  The ball has a maximum potential energy at a height of 
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B.
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D.
7.  According to Newton;s second law of motion, acceleration increases as force increases, if mass stays the same.
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B.
8.  On the Celcius scale, the number 0 is assigned to the temperatures at which water condenses. 
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B.
9.  A 10-kg ball is accelerated 500m/s (squared) by a force of...
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B.
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D.
10.  The force exerted by gravity is stronger if two objects are closer.
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B.
11.  A moving object can do work so it has potential energy.
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B.
12.  Elastic potential energy is associated with objects that can be stretched. 
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B.
13.  Match the sentence with the apropriate word.
A. An object is in motion if it is moving relative to a(n)
A.
B. To calculate acceleration, divide the change in ______________ by the time during which the acceleration occurs
B.
C. The velocity of an objectgives both its speed and
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D. You can calculate an average if you know both the total distance and the total time of a trip.
D.
14.  The amount of matter in an object is called its 
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B.
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D.
15.  Kinetic energy depends on 
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B.
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D.
16.  Friction acts in a direction __________ to the direction of an object's motion
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B.
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D.
17.  Work is the transfer of energy.
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B.
18.  Potential energy is the energy 
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19.  An electric blanket converts electrical energy to 
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B.
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D.
20.  A rubber band that is flying across the room is moving because it has kinetic energy.
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B.
21.  The state of a substance depends ont he amound of thermal energy it posesses.
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B.
22.  The force of friction acts between all objects in the universe.
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B.
23.  Patty was walking very quickly through the cafeteria with her tray full of food when she tripped over a broomstick and flew forward along with all of her food.   This is an example of Newton's first law of motion which states,  "...an obect in motion will stay in motion..."
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B.
24.  A (n) ______________ can cause an objects motion to change
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D.
25.  The energy stored in fossil fuels is released by burning.
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B.
26.  Your body converts chemical energy to all of the following EXCEPT
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27.  Match the sentence with the apropriate word.
A. _____________ is the total energy of all of the particles in a substance
A.
B. The movement when heated fluid rises and is replaced by a cooler fluid is called a(n) _________________ current.
B.
C. The temperature at which a solid changes to a liquid is the ______________.
C.
D. A(n) __________________ is a device that transfers thermal energy from a cool region to a warm region.
D.
28.  Jake and Tom want to see who is strogest, so they got a rope and decided to play tug-o-war.  Both boys pulled at the rope with all of their strength, but neither of them moved.   This is called unbalanced force. 
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B.
29.  Forces can be added together on if they are acting on different objects.
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B.
30.  A rider finishes a 120 km bicycle trip in 3 hours.  The average speed of the rider is....
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B.
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D.
31.  An airplane that moves 50 meters in one second has a speed of....
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B.
C.
D.
32.  Plants convert electromagnetic energy to chemical energy.
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B.
33.  An object cannot be accelerating if it is changing direction.
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B.
34.  The formula, Work/ Time (Work divided by Time) is used to calculate
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D.
35.  A(n) ___________ causes objects to move in a circle
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36.  Newtons second law of motion states the relationship of mass, acceleration and force.  It says that....
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D.
37.  Power is the rate at which energy is lost. 
A.
B.
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