Forces and Motion Test Review

What Unit do we measure Force in? 

• Newtons
• Joules
• Force
• Don't know

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?

• first
• second
• third 
• fourth

a push or pull

• inertia
• force
• movment
• friction

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

True of False?
An object's inertia is effected by its mass.

• False
• True

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NGSS.MS-PS2-2

Newton's third law states that any action will have a(n) _______ and ______ reaction

• Equal and similar
• Equal and opposite
• Equal and different
• Greater and opposite

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NGSS.MS-PS2-1

Newton's second law states that

• An object at rest tends to stay at rest, and an object in motion tends to stay in motion, with the same direction and speed.

• For every action, there is an equal and opposite reaction.

• Force equals mass times acceleration

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NGSS.MS-PS2-2

Newton's first law states that

• An object at rest tends to stay at rest, and an object in motion tends to stay in motion, with the same direction and speed.

• For every action, there is an equal and opposite reaction.

• Force equals mass times acceleration

The image below shows two opposite forces acting during Tug-a-war, what can we say is true about the effect of the forces on the cart?

• It cannot be determined without knowing which team is stronger.

• The forces are unbalanced, and net force on the rope moves it to the left.

• It cannot be determined because one team looks stronger than the other.

• The forces are unbalanced, and net force on the rope moves it to the right.

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NGSS.MS-PS2-2

Which of these is an example of Newton's First Law of Motion?

• A pencil being thrown across the classroom.

• A volleyball thrown in the air falls to the ground.

• A baseball remains motionless until it is thrown by a player.

• A hockey player pushes off from a wall and moves backwards.

When you paddle a boat, as you row the paddle backwards the boat moves forward. Which law is this an example of?

• For every action, there is an equal and opposite reaction.

• An object at rest tends to stay at rest.

• Friction opposes the motion of an object.

• Every mass exerts a force on every other mass.

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NGSS.MS-PS2-1