Midterm Review 3 (2023)

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

Tags

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 player throws a ball. The action force is the player impact on the ball. The reaction force is...

• The force of the ball impact on the player
• The force of the grip of the ball
• The celebration the player is thinking of

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

A baseball player hits a ball with 400 N of force. How much force does the ball exert on the bat?

• 300 N

• 400 N

• 500 N

• Not enough info to tell

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 ACTION force?

• Swimmer pushes on the water

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

Tags

NGSS.MS-PS2-1

For every action there is an equal and opposite re-action.

• Newton's First Law of Motion
• Newton's Second Law of Motion
• Newton's Third Law of Motion
• Newton's Fourth Law of Motion

Tags

NGSS.MS-PS2-1

How is this an example of Newton’s Third law?

• Only the ball is using the head

• They are both exerting an equal force on each other

• Only the head is pushing the ball

Tags

NGSS.MS-PS2-1

A person steps out of the boat and onto the dock.  As the person moves forward onto the dock, the boat moves backward.  Which statement best describes the backward motion of the boat as the person steps forward?

• For every action there is an equal and opposite reaction.
• Every mass exerts a force on every other mass.
• An object at rest tends to stay at rest.
• Friction opposes the motion of an object.

Tags

NGSS.MS-PS2-1

Energy due to motion is ____________ energy. 

• Potential 
• Energy
• Kinetic
• Friction

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1