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Unit 6 Review
Test Description: A review of force and motion
Instructions: Answer all questions to get your test result.
1) Which form of energy increases as an apple falls from a tree?
A
thermal energy
B
potential energy
C
kinetic energy
D
electrical energy
2) Which of the following is the best example of potential energy?
A
baby crawling
B
fish swimming
C
ball bouncing
D
stretched rubberband
3) Changes in the motion of an object is determined by ---
A
its density
B
its chemical properties
C
the renewable resources available
D
the size and direction of the forces acting on it
4) The amount of kinetic energy that an object contains depends on ---
A
mass and length
B
mass and height
C
position and height
D
mass and speed
5) A cat sitting on top of a refrigerator has what kind of energy?
A
kinetic
B
mechanical
C
thermal
D
potential
6) Which of the following statements best describes what happens when you use a simple machine?
A
less force will be needed to move a box with an inclined plane
B
It will take the same amount of force to move both boxes.
C
none of the above
D
less force will be needed to move a box without an inclined plane
7) Which cube will move as a result of a force of 20 N to the left?
A
Cube B 30 N to the left and 10 N to the right
B
none of the above
C
Cube C is 30 N to the left and 30 N to the right
D
Cube A is 50 N to the right and 40 N to the right
8) What is the average speed of an object that goes 30 cm in 30 seconds?
A
30 cm/s
B
none of the above
C
60 cm/s
D
1 cm/s
9) If the line on a graph goes horizontal, what is happening?
A
the object is slowing down
B
none of the above
C
the object is stopped
D
the object is speeding up
10) At which point does the roller coaster have the most kinetic energy?
A
bottom of the smallest hill
B
top of the highest hill
C
none of the above
D
bottom of the highest hill
*select an answer for all questions
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