Force and Motion Unit Review

Newton's First Law means that an object...

• wants to change direction

• wants to change speed

• wants to keep moving the same speed and direction it was

• wants to stop moving

What happens when unbalanced forces act on an object at rest?

• the object remains at rest

• the object begins moving in an unpredictable direction

• the object begins moving in the direction of the total force

• the object begins moving opposite to the direction of net force

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An object is resting motionless on a surface. According to Newton's 1st Law, the object will only start to move if

• the net forces on the object equal zero

• an unbalanced force is applied to the object

• the upward force of the object is equal to its acceleration

• two forces that are equal and opposite are applied to the object

What is Newtons 2nd law of motion?

• Pancakes 

• Force= Mass multiplied by acceleration

• For every action there is a equal and opposite  re-action.

• Law of gravity 

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• A

• B

• C

• D

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The more massive an object, the (a)   affect a certain force will have on the object.

• less

• more

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Newton's 3rd Law states that for every action there is an equal and opposite ________.

• reaction

• friction

• fraction

• inertia

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What happens when two objects, such as a baseball and a bat, collide?

• They hit each other with the same force in the same direction.

• They hit each other with the same force in opposite directions.

• They hit each other with unequal force in opposite directions.

• One remains still while the other one moves in the same direction.

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A person is pushed forward into their seat belt when a car stops. Which law is this?

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

The harder you hit a baseball, the faster it accelerates.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

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