Physics

Question 1

What is the unit of measurement for Thermal energy ?

Answer 1

J

Question 2

If you keep heating a liquid, What happens to the energy of particles in the liquid ?

Answer 2

It Increases

Question 3

A substance boils when it changes from which 2 states of Matter ?

Answer 3

Liquid to Gas

Question 4

What is the name given to the change of state when a substance turns directly from a solid to a gas ?

Answer 4

Sublimation

Question 5

What is the name given to the change of state when a solid turns to a liquid ?

Answer 5

Melting

Question 6

What is the name given to the change of state when a substance turns from a liquid to a gas ?

Answer 6

Vaporisation or Evaporation

Question 7

What is the name given to a change of state when a substance turns directly from a gas to a solid ?

Answer 7

Deposition

Question 8

What is the name given to a change of state when a substance turns from a gas to a liquid ?

Answer 8

Condensation

Question 9

What is the name given to a change of state when a substance turns from a liquid to a solid ?

Answer 9

Freezing

Question 10

The specific latent heat of a substance is the amount of energy required to change how much of the substance ?

Answer 10

1KG of a substance boils when

Question 11

The energy needed to boil a liquid is known as the latent heat of what ?

Answer 11

Vaporisation

Question 12

How do you find Mass ?

Answer 12

Density x Volume
( P x V )

Question 13

How do you find Volume ?

Answer 13

Mass ➗ Density
( M ➗ P )

Question 14

Name the three states of Matter

Answer 14

Solid, Liquid, Gas

Question 15

How does melting occur ?

Answer 15

When a solid is heated, it absorbs energy and it melts, turning into a liquid.