Chapter 9: Newton’s Laws Of Motion

Question 1

Newton’s First Law

Answer 1

A body will remain in its current state of motion unless acted on by a resultant force.

Question 2

Newton’s Second Law of Motion

Answer 2

When a resultant force acts on a body, it will accelerate in the direction of that force. F=ma

Question 3

Newton’s Third Law of Motion

Answer 3

For every force acting on a body there is an EQUAL and OPPOSITE force of the SAME TYPE along the SAME LINE acting on a different body.

Question 4

How do different applications of force affect velocity?

Answer 4

Object will speed up or slow down when a force is applied along its direction of motion.
Object will change direction when a force is applied at an angle to its direction of motion.

Question 5

What is a free body diagram?

Answer 5

A diagram showing all the forces acting on a single body