Stemscopes Exam Physical Science

Question 1

What is the SI unit of force?

Accepted Answer

Newton

Answer

Joule

Answer

Watt

Answer

Pascal

Question 2

Which of the following best describes a physical change?

Accepted Answer

Cutting paper

Answer

Burning wood

Answer

Rusting iron

Answer

Baking a cake

Question 3

What happens to the speed of a wave as it moves from water into air?

Accepted Answer

It decreases

Answer

It increases

Answer

It stays the same

Answer

It doubles

Question 4

An object at rest will remain at rest unless acted upon by an unbalanced force. This is Newton's:

Accepted Answer

First Law

Answer

Second Law

Answer

Third Law

Answer

Law of Gravitation

Question 5

Which type of energy is stored in a stretched rubber band?

Accepted Answer

Elastic potential energy

Answer

Kinetic energy

Answer

Thermal energy

Answer

Chemical energy

Question 6

What is the relationship between mass and weight?

Accepted Answer

Weight = Mass × Gravity

Answer

They are the same thing

Answer

Mass = Weight × Gravity

Answer

They are unrelated