A push or pull of an object is called __________________.

• force

• gravity

• energy

• friction

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Which of these would take the most force to lift?

• one book

• a cotton ball

• a pencil

• a box of bricks

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Which force is shown in the picture?

• push

• pull

• gravity

• friction

Which force is shown in the picture?

• push

• pull

• gravity

• friction

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In science, when one object runs into another we call it a _____________.

• crash
• hit
• strike
• collision

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How did the ants move the rock near their anthill?

They ____ it.

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You are pushing a book across a table. What do you change if you push harder?

• motion
• direction
• speed

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NGSS.MS-PS2-2

Why was Carlos' skateboard moving slowly?

• The wheels were old and rough causing friction

• The wheels were new and smooth

• He's not good at skateboarding

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When you throw a ball in the air, what pulls it back to the ground?

• Wind

• Friction

• Gravity

• Direction

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Friction can change the _______ of an object.

• Direction

• Speed

• Position

• Color

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