Question

Match Newton's laws with the description.

1. Every applied force is opposed by an equal force.
Second Law
2. A force must be applied to change an object's velocity.
Third Law
3. Acceleration is affected by mass.
First Law

Answer 1

Correct matches:

1. Every applied force is opposed by an equal force. — Third Law
(For every action there is an equal and opposite reaction.)

2. A force must be applied to change an object's velocity. — First Law
(An object remains at rest or in uniform motion unless acted on by a net external force.)

3. Acceleration is affected by mass. — Second Law
(F = ma — acceleration depends on net force and inversely on mass.)