NGSS.5-PS2-1

Rina’s mother asked her to help move some items from the hall closet to the garage. One item she wanted to move was a large box of old school books. Rina tried to lift the box, but could not pick it up. What force was Rina NOT able to overcome? 

• frictional force
  frictional forcefrictional force
• gravitational force
• electrical force
• magnetic force 
  magnetic force
  

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NGSS.5-PS2-1

What pulls a ball back to earth?

• Gas
• Gravity
• Friction
• Molecules

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NGSS.5-PS2-1

The force resulting from the pull of the earth on an object

• mass
• gravity
• acceleration
• unbalance

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NGSS.5-PS2-1

A pencil falls off of a desk. What moves the pencil toward the floor? 

• mass
• friction
• gravity
• speed

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NGSS.5-PS2-1

Which model has greater gravitational attraction (if any)

• Model A
• Model B
• Both Model A and Model B (same gravity)

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NGSS.5-PS2-1

True or false. Your mass would change if you went to another planet.

• True

• False

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NGSS.5-PS2-1

What attracts a body toward any other object in space

• the sun

• satellites

• gravity

• astroid belt

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NGSS.5-PS2-1

Is gravity a....

• Force that pulls things in a straight line.

• Force

• air and hydrogen

• Force that pulls things toward an object with bigger gravitational pull

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NGSS.5-PS2-1

If Earth spins, why don't we fall off?

• The atmosphere holds us in.

• Earth spins very slowly.

• Gravity pulls on all objects.

• Earth spins so fast, that the forces hold us in.

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NGSS.5-PS2-1

TRUE or FALSE Earth pulls objects down toward the ground with the force of gravity, so up is away from the ground, anywhere on Earth.

• TRUE

• FALSE

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NGSS.5-PS2-1