NGSS.K-PS2-1

What must happen to an object in order to accelerate it?

• a net force must be applied
• some weight must be removed
• its frictional coefficient must be reduced
• it must contain momentum

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NGSS.K-PS2-1

What is the unit for FORCE? 

• N (Newtons)
• lbs (pounds)
• g (grams)
• m/s (meters per second)

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NGSS.K-PS2-1

How much force is needed to accelerate a 3kg skateboard at 5m/s^2. 

• 8N
• 1.6N
• 0.6N
• 15N

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NGSS.K-PS2-1

Is this a balanced or unbalance force?

• Balanced
• Unbalanced
• Neither one
• Both

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NGSS.K-PS2-1

A force is ____.

• a push or pull that can cause movement

• a magnet

• when someone does not work

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NGSS.K-PS2-1

A push is ____.

• a force to move something away

• a force to pull something towards you

• when a magnet attracts metals

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NGSS.K-PS2-1

This is an example of what force?

• pull

• push

• gravity

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NGSS.K-PS2-1

Segment B-C The bus is _________________.

• at rest

• returning (to original position)

• moving forward

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NGSS.K-PS2-1

what does a magnet do?

• Push

• Pull

• Friction

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NGSS.K-PS2-1

Katie kicked a ball lightly. then she used more force to kick the ball again. What effect did the stronger force have on the ball?

• The ball stopped moving.

• The ball move faster.

• The ball moved more slowly.

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NGSS.K-PS2-1