# 8th Grade Forces And Motion Test Review: Question Preview (ID: 25942)

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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) the slope curves downward
c) there is no slope
d) the slope curves upward like a J from bottom left towards top right

When looking at a speed graph, when the line is flat
a) the object is moving in a straight line
b) the object is moving backwards
c) the object is moving forwards
d) the object is still

What two variables are important in finding the speed of an object?
a) distance traveled and direction
b) direction traveled and time
c) distance traveled and time
d) none of the answers are correct

When finding the velocity of an object, what variables are needed?
a) distance, time, and acceleration
b) distance, time, and direction
c) distance and direction
d) direction and time

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 away from the starting point.
d) The object is moving towards the starting point.

Newton's First Law of Motion is also known as
a) Action-Reaction
b) F=ma
c) Law of Inertia
d) none of the answers are correct

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) It will take more force to cause a heavy object to accelerate.
d) all of the answers are correct

Which law of motion can explain what happens to you when a car stops suddenly?
a) First Law of Motion
b) Second Law of Motion
c) Third Law of Motion
d) there is no viable explanation

The SI unit for measuring force or weight is called the
a) joule
b) newton
c) kilogram
d) gram

Which of the following is NOT a type of friction
a) static friction
b) rolling friction
c) sliding friction
d) heating friction

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