Newton's Third Law of Motion

Newton's Third Law States...

• Objects in motion stay in motion and objects at rest stay at rest
• Force is equal to mass times acceleration
• For each action there is an equal and opposite reaction

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NGSS.MS-PS2-1

An archer shoots an arrow. The action force is the bowstring against the arrow, the reaction force is...

• Air resistance against the bow
• the arrow's push against the bowstring
• the grip of the archer's hand on the bow

Tags

NGSS.MS-PS2-1

A baseball player bats a ball with a force of 1,000 N. The ball exerts a reaction force (without any additional forces action on it) against the bat of...

• Less than 1, 000 N
• 1,000 N
• More than 1,000 N

Tags

NGSS.MS-PS2-1

What is the reaction force to a foot pushing down on the floor?

• The foot going through the floor
• The floor pushing back against the foot
• The floor breaking to the foot

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NGSS.MS-PS2-1

According to Newton's Third law the strength or magnitude of forces will be...

• smaller
• equal
• larger

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A swimmer pushes on the water and the water pushes on the hand and the swimmer moves forward. What is the ACTION force?

• Swimmer pushes on the water

• the water pushes on the hand and the swimmer moves forward

Tags

NGSS.MS-PS2-1

A swimmer pushes on the water and the water pushes on the hand and the swimmer moves forward. What is the REACTION force?

• Swimmer pushes on the water

• the water pushes on the hand and the swimmer moves forward

Tags

NGSS.MS-PS2-1

Newton's _____ Law of Motion means that for every force there is a reaction force that is equal in size, but opposite in direction.

• First
• Second
• Third
• Fourth

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NGSS.MS-PS2-1

The ____ of an object is the force of gravity on the object.

• mass
• weight
• volume
• density

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NGSS.MS-PS2-4

How many Laws of Motion are there?

• 1
• 2
• 3
• 4