Motion And Energy

Question 1

What is Newton’s first law?

Answer 1

An object at rest will that remain that way until acted on by a force
An object that is moving will continue to the same until acted on by a force

Question 2

What is inertia?

Answer 2

The tendency to resist change, e.g. When you are standing on a bus and it speed up or breaks and you fall

Question 3

Why are safety features in cars important?

Answer 3

Seat belts and airbags stop you from being thrown forward in a crash or if it suddenly stops

Question 4

What is Newtons Second Law?

Answer 4

Force = mass x acceleration

Question 5

What is an example of good old Newty’s second law

Answer 5

If you are pulling a car you will need to use more force than if you are pulling a truck or if you want to pull it at a faster rate

Question 6

What is the Third Law of Newty?

Answer 6

Every action has its equal opposite reaction

Question 7

What are some common action-reaction pair

Answer 7

A nail hit by a hammer exerts and equal force back

A bat hits a ball and the ball is propelled forward

Question 8

What is are the formulas for speed and acceleration

Answer 8

Speed = distance/time
Acceleration = velocity/time