AZSCI Physical Science

Question 1

Which of the following is an example of a force?

Accepted Answer

A ball being thrown

Answer

Water boiling

Answer

Ice melting

Answer

A shadow forming

Question 2

What happens to the speed of a car if the force applied to it increases while its mass remains the same?

Accepted Answer

The speed increases

Answer

The speed decreases

Answer

The speed stays the same

Answer

The car stops moving

Question 3

What is the primary cause of friction between two surfaces?

Accepted Answer

The roughness of the surfaces

Answer

The shape of the objects

Answer

The weight of the objects

Answer

The temperature of the surfaces

Question 4

Which of the following best describes the energy stored in a compressed spring?

Accepted Answer

Potential energy

Answer

Kinetic energy

Answer

Thermal energy

Answer

Radiant energy

Question 5

Which of the following statements about the law of conservation of energy is correct?

Accepted Answer

Energy can be transformed from one form to another, but the total amount remains constant

Answer

Energy can be created and destroyed

Answer

Energy is always lost as heat in all processes

Answer

Energy can only be stored, not transferred