Newton's Third Law

Newton's third law of motion describes equal and opposite forces:

• between two objects

• acting on a single object

• acting only when objects are in contact

• between solid objects but not liquids or gases

Tags

NGSS.MS-PS2-1

If you lean against a brick wall, the wall:

• pushes back with an equal force

• pushes back with a smaller force

• pushes back with a greater force

• does not push back

Tags

NGSS.MS-PS2-1

Which law is this: Every force has an equal and opposite reaction force.

• Newtons First Law

• Newtons Second Law

• Newtons Third Law

Tags

NGSS.MS-PS2-1

Newtons third law states that for every action, there is an_________ reaction

• unequal and opposite

• stronger and opposite

• equal and similar

• equal and opposite

Tags

NGSS.MS-PS2-1

The forces in a force pair are in _______ direction

• opposite

• same

Tags

NGSS.MS-PS2-1

When a small car pushes a big truck, the truck applies an equal and opposite force on the car.

• False

• True

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

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

Tags

NGSS.MS-PS2-1

The Moon's gravitational pull on the Earth is ____________ the Earth's gravitational pull on the Moon.

• Equal to

• Less than

• Greater than

Tags

NGSS.MS-ESS1-1

NGSS.MS-PS2-4

A fly hits the windscreen of a moving car. In this collision, how did the size of the force on the fly compare to the size of the force on the car?

The force that the car applied to the fly was ____________ the force that the fly applied to the car.

• Equal to

• Less than

• Greater than

Tags

NGSS.MS-PS2-1