Newton's 3rd Law

Newton's 3rd law says that for every action, there is an ______ reaction.

• unequal & opposite

• equal & similar

• equal & opposite

• stronger & opposite

Tags

NGSS.MS-PS2-1

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

• True

• False

Tags

NGSS.MS-PS2-1

When a cannon fires a cannonball, we can observe Newton's 3rd Law. Which is the reaction force?

• The cannon moving forward

• The cannon moving backward

• The cannonball moving backward

• The cannonball moving forward

Tags

NGSS.MS-PS2-1

When a person pushes against the ground with their foot, the equal and opposite reaction force is

• when they start to move forward

• the ground pushing back on their foot

Tags

NGSS.HS-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?

• 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.

• For every action there is an equal and opposite reaction.

Tags

NGSS.MS-PS2-1

When a heavy football player and a light football player run into each other, who exerts more force?

• The heavy one

• The light one

• They both exert an equal amount of force

Tags

NGSS.MS-PS2-1

What will happen to the balloon if it is released?

• The balloon will go up

• The balloon will go down

• The balloon will move to the left

• The balloon will move to the right

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the action in the picture?

• The man pushing against the wall

• The wall pushing back at the man

• The ground pushing against the man's foot

Tags

NGSS.MS-PS2-1

Forces always come in __________.

• Pairs

• Triplets

• Waves

Tags

NGSS.MS-PS2-1

Action-reaction forces can cause a change in motion.

• True

• False

Tags

NGSS.MS-PS2-1