Forces Review

Recap Newton's 1st Law

Recap Newton's 2nd Law

Recap Newton's 3rd Law

If an object is moving in a straight line with a constant speed, how much net force is acting on it? ______N

If a force is acting on an object and the mass of the object is increased, what happens to its acceleration?

• Increases

• Decreases

• Stay the same

If the action force is 20 N to the right, what is the reaction force?

What 2 variables affect the strength of gravity

• Mass

• Velocity

• Distance

• Time

Which law is it!?

A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them. ________

• 1

• 2

• 3

• 4

Which law is it!?

Rockets are launched into space using jet propulsion where exhaust accelerates out from the rocket and the rocket accelerates in an opposite direction. ________

• 1

• 2

• 3

• 4

Which law is it!?

Pushing a child on a swing is easier than pushing an adult on the same swing. ________

• 1

• 2

• 3

• 4