Newton's Laws

 Newton’s third law of motion involves the interactions of 

• one object and one force
•  one object and two forces
• two objects and one force. 
• two objects and two forces. 

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NGSS.MS-PS2-1

A hammer drives a nail into a piece of wood. Identify an action-reaction pair in this situation. 

• The nail exerts a force on the hammer; the hammer exerts a force on the wood.
• The hammer exerts a force on the nail; the wood exerts a force on the nail.
• The hammer exerts a force on the nail; the nail exerts a force on the hammer. 
• The hammer exerts a force on the nail; the hammer exerts a force on the wood. 

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NGSS.MS-PS2-1

Newton's second law of motion states that an unbalanced force that acts upon an object causes it to:

• accelerate
• not accelerate (keep the same velocity
• have a velocity

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NGSS.MS-PS2-2

The scientist who is most famous for developing the Laws of Motion is _____.

• Albert Einstein
• Stephen Hawking
• Sir Isaac Newton
• Galileo Galilei

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

When an object resists change, like a body in a turning car, it is called ________________.

• inertia

• force

• friction

• drag force

A sled sliding on a flat, icy surface with a constant velocity is best described by

• Newton’s first law of motion for objects at rest.
• Newton’s first law of motion for objects in motion.
• Newton’s second law of motion.
• Newton’s third law of motion.

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.

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NGSS.MS-PS2-1

What is Force?

• A Push
• A Pull
• Jumping
• Either a push or pull

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NGSS.MS-PS2-1

If a 10 kilogram object accelerates suddenly at 15 m/s², how much force was applied to the object?

• 150 Newtons
• 15 Newtons
• 150 kilograms
• 100 kilograms

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NGSS.MS-PS2-2

An object will not have any inertia if it is _______________

• Accelerating
• Moving in a circle
• In space
• All objects have inertia