Describing Motion and Force

What is a PUSH or PULL of an object?

• Motion
• Force
• Friction
• Gravity

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Why is it harder for the boy in Image B to get down the hill?

• Motion
• Friction
• Work
• Displacement

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Which force produces a change in motion?

• unbalanced force
• balanced force
• gravitational force
• frictional force

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If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

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_______________ is how fast an object changes over time. 

• speed
• velocity
• momentum
• acceleration

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What happens when two forces act in the same direction?

• They cancel each other out.
• The stronger one prevails.
• Their strengths are added.
• Their sum divided by the two is the total force.

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Any time the forces are unbalanced, an object will remain at rest. True or false?

• true
• false

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When you tell the direction and speed of an object, you give its

• motion
• velocity
• acceleration
• mass

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NGSS.MS-PS3-1

What is the net force on the block? (click on the words to view the picture)

• 5 Newtons up
• 5 Newtons down
• 15 Newtons up
• 15 Newtons down

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Which of the following statements is true? 

• Balanced forces cause a change in motion. 
• Unbalanced forces cause a change in motion. 
• Forces do not effect the change in motion. 

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