Newton's Third Law

Whenever an object exerts a force on another object, the second object exerts a force of the same magnitude, but in the opposite direction to that of the first object.

• True

• False

Tags

NGSS.MS-PS2-1

A high school student hits a nail with a hammer. During the collision, there is a force

• on the nail but not on the hammer.

• on the nail and also on the hammer.

• on the hammer but not on the nail.

Tags

NGSS.MS-PS2-1

Forces always occur

• as single quantities.

• by themselves.

• in pairs.

• in triplets.

Tags

NGSS.MS-PS2-1

A player catches a ball. Consider the action force to be the impact of the ball against the player's glove. What is the reaction to this force?

• The muscular effort in the player's arms

• The force the glove exerts on the ball

• Friction of the ground against the player's shoes

• The player's grip on the glove

Tags

NGSS.MS-PS2-1

As a ball falls, the action force is the pull of Earth's mass on the ball. What is the reaction to this force?

• The pull of the ball's mass on Earth

• The acceleration of the ball

• Nonexistent in this case

• Air resistance acting against the ball

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

A person is attracted towards the center of Earth by a 440-N gravitational force. The force with which Earth is attracted toward the person is

• 440 N.

• very very small.

• very very large.

Tags

NGSS.MS-PS2-4

An unfortunate bug splatters against the windshield of a moving car. Compared to the force of the car on the bug, the force of the bug on the car is

• larger.

• the same.

• smaller.

• Need more information to say

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A large truck and a small car traveling at the same speed have a head-on collision. The vehicle to undergo the greater change in velocity will be

• the small car.

• the large truck.

• neither—both are the same

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

According to Newton's third law, if you push gently on something, it will push

• gently on something else.

• on you only if you aren't moving.

• gently on you.

• on something only under the right conditions.

Tags

NGSS.MS-PS2-1

A karate chop delivers a blow of 2300 N to a board that breaks. The force that acts on the hand during this feat

• is less than 2300 N.

• is 2300 N.

• is more than 2300 N.

• cannot be determined.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2