Thermal Energy and States of Matter

During a change of state, the addition of or loss of thermal energy changes the ______________________________.

• number of particles

• arrangement of the particles

• size of the particles

• type of particles

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the temperature at which a solid changes into a liquid called?

• boiling point

• melting point

• freezing point

• absolute zero

Tags

NGSS.MS-PS1-4

What happens to the thermal energy of a substance as it freezes?

• the substance gains thermal energy

• the substance loses thermal energy

• the substance absorbs thermal energy

• there would be no thermal energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Matter exists on Earth in how many different states or forms?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-4

Evaporation is vaporization that takes place only

• at the surface of a liquid

• below the surface of liquid

The expanding of matter when it is heated is known as ___________________

• condensation

• evaporation

• vaporization

• thermal expansion

Tags

NGSS.MS-PS1-4

Which of the follow is a common example of thermal expansion?

• a toaster oven

• refrigerator

• microwave oven

• thermostat

The bimetallic strip in a thermostat bends as it is heated because the two metals in the strip ______ at different rates

• expand

• retract

• freeze

• boil

Tags

NGSS.MS-PS1-4

What do you call vaporization that takes place below the surface of the liquid?

• evaporation

• boiling

• melting

• condensation

The melting point of a solid is 24.9 degrees Celsius. As heat is added to melt the solid, what happens to the particles?

Group of answer choices

• the motion of the particles decreases and the distance between the particles increases

• the motion of the particles decreases and the distance between the particles decreases

• the motion of the particles increases and the distance between the particles decreases

• the motion of the particles increases and the distance between the particles increases

Tags

NGSS.MS-PS1-4