Which one of these force diagrams shows an object that could be moving at a constant speed?

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Tags

NGSS.HS-PS2-1

Which of these force diagrams could be for a tortoise?

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What is the net force for this object?

• 80 N, right

• 50 N, right

• 50 N, left

• 30 N, left

Tags

NGSS.HS-PS2-1

If an object has balanced forces acting on it, which of the following would be its acceleration?

• 10 m/s/s, down

• 0 m/s/s

• 10 m/s/s, up

• It depends on the value of the net force, which is unknown.

Tags

NGSS.HS-PS2-1

What will be the acceleration of the cart if there is no friction present?

• 200 m/s/s, right

• 20 m/s/s, left

• 0.5 m/s/s, right

• 2 m/s/s, right

Tags

NGSS.HS-PS2-1

This object MUST be…

• accelerating upward.

• slowing down.

• moving upward.

• moving at a constant speed.

Tags

NGSS.HS-PS2-1

This object is accelerating at 2 m/s/s to the right. How big is the unknown force?

• 6 N

• 10 N

• 18 N

• –2 N

Tags

NGSS.HS-PS2-1

Which TWO force diagrams show an object that is changing its motion?

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Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

Which TWO force diagrams show an object that has a constant velocity?

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Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

When a weight of 20 N is placed on a spring it compresses 10 cm. How far will the spring compress when 50 N is placed on it?

• 55.8 cm

• 10 cm

• 25 cm

• 50 cm

Tags

NGSS.MS-PS2-2