Module 3 - 3.5.1 Newton's Laws of Motion

Question 1

Newton’s First Law

Answer 1

An object will stay in motion at a constant velocity unless an unbalanced force acts on it

Question 2

Newton’s Second Law

Answer 2

Force is proportional to the rate of change of momentum

Question 3

Newton’s Third Law

Answer 3

If body A exerts a force, F, onto body B, body B will exert a force, -F, onto body A

Question 4

A Newton’s Third Law Pair of Forces Must:

Answer 4

• be the same type of force
• act in opposite directions
• act on different objects

Question 5

Impulse (definition)

Answer 5

The product of a force and the time for which the force acts

Question 6

Impulse is equal to (2)

Answer 6

• change in momentum
• the area under a force-time graph