Motion, Forces And Energy Unit Test

37 Questions  I  By CharlieC23
Chapters: 1, 2, 5 and 6

  
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1.  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..."
A.
B.
2.  A (n) ______________ can cause an objects motion to change
A.
B.
C.
D.
3.  The force exerted by gravity is stronger if two objects are closer.
A.
B.
4.  The formula, Work/ Time (Work divided by Time) is used to calculate
A.
B.
C.
D.
5.  A 10-kg ball is accelerated 500m/s (squared) by a force of...
A.
B.
C.
D.
6.  Friction acts in a direction __________ to the direction of an object's motion
A.
B.
C.
D.
7.  Plants convert electromagnetic energy to chemical energy.
A.
B.
8.  An electric blanket converts electrical energy to 
A.
B.
C.
D.
9.  Temperature is a measure of the average potential energy of each particle within an object.
A.
B.
10.  Forces can be added together on if they are acting on different objects.
A.
B.
11.  Potential energy that depends on height is gravitational potential energy.
A.
B.
12.  A rider finishes a 120 km bicycle trip in 3 hours.  The average speed of the rider is....
A.
B.
C.
D.
13.  The state of a substance depends ont he amound of thermal energy it posesses.
A.
B.
14.  A girl throws a ball 15m into the air.  The ball has a maximum potential energy at a height of 
A.
B.
C.
D.
15.  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. 
A.
B.
16.  A rubber band that is flying across the room is moving because it has kinetic energy.
A.
B.
17.  A moving object can do work so it has potential energy.
A.
B.
18.  Your body converts chemical energy to all of the following EXCEPT
A.
B.
C.
D.
19.  The law of conservation of energy states that when one form of energy is converted to another, SOME energy is destroyed. 
A.
B.
20.  Unless an object at rest is acted upon by a force, it stays at rest due to its 
A.
B.
C.
D.
21.  The force of friction acts between all objects in the universe.
A.
B.
22.  A satellite in orbit around Earth is always falling toward Earth.
A.
B.
23.  Kinetic energy depends on 
A.
B.
C.
D.
24.  An airplane that moves 50 meters in one second has a speed of....
A.
B.
C.
D.
25.  On the Celcius scale, the number 0 is assigned to the temperatures at which water condenses. 
A.
B.
26.  A(n) ___________ causes objects to move in a circle
A.
B.
C.
D.
27.  Power is the rate at which energy is lost. 
A.
B.
28.  Elastic potential energy is associated with objects that can be stretched. 
A.
B.
29.  An object cannot be accelerating if it is changing direction.
A.
B.
30.  The amount of matter in an object is called its 
A.
B.
C.
D.
31.  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.
32.  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
C.
D. You can calculate an average if you know both the total distance and the total time of a trip.
D.
33.  The energy stored in fossil fuels is released by burning.
A.
B.
34.  Newtons second law of motion states the relationship of mass, acceleration and force.  It says that....
A.
B.
C.
D.
35.  Work is the transfer of energy.
A.
B.
36.  Potential energy is the energy 
A.
B.
C.
D.
37.  According to Newton;s second law of motion, acceleration increases as force increases, if mass stays the same.
A.
B.
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