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8th Grade Forces And Motion Test Review
Test Description: Use this to study for the test.
Instructions: Answer all questions to get your test result.
1) When looking at an average speed graph, the slope
A
moves up in a straight angled line from the bottom left to the top right
B
there is no slope
C
the slope curves upward like a J from bottom left towards top right
D
the slope curves downward
2) When looking at a speed graph, when the line is flat
A
the object is moving forwards
B
the object is still
C
the object is moving in a straight line
D
the object is moving backwards
3) What two variables are important in finding the speed of an object?
A
distance traveled and time
B
distance traveled and direction
C
direction traveled and time
D
none of the answers are correct
4) When finding the velocity of an object, what variables are needed?
A
direction and time
B
distance and direction
C
distance, time, and acceleration
D
distance, time, and direction
5) When looking at a speed graph, when the slope of the line goes down from left to right, how is the object moving?
A
The object is going downhill.
B
The object is slowing down.
C
The object is moving towards the starting point.
D
The object is moving away from the starting point.
6) Newton's First Law of Motion is also known as
A
Law of Inertia
B
Action-Reaction
C
none of the answers are correct
D
F=ma
7) Newton's Third Law of Motion states that
A
for every action, there is an equal and opposite reaction.
B
things in motion will stay in motion and things at rest will remain at rest unless an outside force is applied.
C
all of the answers are correct
D
It will take more force to cause a heavy object to accelerate.
8) Which law of motion can explain what happens to you when a car stops suddenly?
A
Third Law of Motion
B
First Law of Motion
C
Second Law of Motion
D
there is no viable explanation
9) The SI unit for measuring force or weight is called the
A
newton
B
joule
C
gram
D
kilogram
10) Which of the following is NOT a type of friction
A
sliding friction
B
heating friction
C
rolling friction
D
static friction
*select an answer for all questions
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