Lesson 2: Newton's First and Third Laws

Question 1

Anika asks Eva to roll a basketball and then a bowling ball to her. Which requires more force to roll, and why?

Revolt · Accepted Answer

the bowling ball, because it has more mass and therefore more inertia

Question 2

Which object exerts the reaction force?

Revolt · Accepted Answer

diving board

Question 3

In what direction does the action force push?

Revolt · Accepted Answer

down

Question 4

In what direction does the reaction force push?

Revolt · Accepted Answer

up

Question 5

Why are more firefighters needed to help hold the fire hose when the increase of water flow increases the force of the water?

Revolt · Accepted Answer

When the force of the water increases, the reaction force pushing the hose back also increases.

Question 6

Which object exerts the action force?

Revolt · Accepted Answer

diver

Question 7

Anika asks Eva to roll a basketball and then a bowling ball to her. Which requires more force to roll, and why?

Revolt · Accepted Answer

the bowling ball, because it has more mass and therefore more inertia

Question 8

Why are more firefighters needed to help hold the fire hose when the increase of water flow increases the force of the water?

Revolt · Accepted Answer

When the force of the water increases, the reaction force pushing the hose back also increases.

Lesson 2: Newton's First and Third Laws Answers