Forces and Motion Review

What type of friction occurs between two objects in contact but not moving?

• Static Friction

• Sliding Friction

• Rolling Friction

• Friction

What is the net force?

• 50 N, up and to the right

• 100 N, down and to the right

• 27 N, up and to the left

• 75 N, down and to the left

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NGSS.MS-PS2-1

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Would the forces be balanced or unbalanced?

• unbalanced

• balanced

• not enough information

• two of the choices

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NGSS.MS-PS2-1

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This image is a good example of which law of motion?

• Newton's 1st Law of Motion

• Newton's 2nd Law of Motion

• Newton's 3rd Law of Motion

• Newton's Law of Inertia

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NGSS.MS-PS2-1

If you care moving an 800 pound refrigerator across the kitchen floor, it is resisting motion because…

• sliding friction

• static friction

• inertia

• two of the above

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Once an object starts moving along a clear path, it would keep moving at the same speed if it were not for

• inertia

• gravity

• an unbalanced force

• all of the above

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An object’s speed will not change unless it is acted on by a(n)

• net force

• strong force

• opposite but equal force

• unbalanced force

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Overcoming an object’s inertia always requires a(n)

• large mass

• large force

• unbalanced force

• two of the above

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the combination of all forces acting on an object is known as

• inertia

• unbalanced force

• gravity

• net force

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an objects tendency to resist a change in motion

• inertia

• unbalanced force

• gravity

• momentum