Heat and Temperature

What happens to the particles in a substance when it is heated?

• They move slower and come closer together.

• They move faster and spread apart.

• They remain stationary and unchanged.

• They condense and become denser.

What is the change in state from a liquid to a gas?

• Condensation

• Evaporation

• Sublimation

• Freezing

What is radiation?

• The transfer of heat through electromagnetic waves.

• The process of sound wave propagation.

• The movement of particles in a solid state.

• The conversion of light into chemical energy.

What is the temperature at which water boils?

• 90 degrees Celsius (194 degrees Fahrenheit)

• 100 degrees Celsius (212 degrees Fahrenheit)

• 110 degrees Celsius (230 degrees Fahrenheit)

• 80 degrees Celsius (176 degrees Fahrenheit)

What happens if heat is taken away from water?

• It evaporates into vapor.

• It remains in liquid form.

• It freezes into a solid.

• It turns into steam.

What is the process called when a solid turns into a liquid?

• Freezing

• Condensation

• Melting

• Evaporation

What is insulation?

• Material that reduces the transfer of heat.

• Material that increases the transfer of heat.

• Material that absorbs sound.

• Material that enhances electrical conductivity.

What is the temperature at which water freezes?

• -10 degrees Celsius (14 degrees Fahrenheit)

• 0 degrees Celsius (32 degrees Fahrenheit)

• 100 degrees Celsius (212 degrees Fahrenheit)

• -5 degrees Celsius (23 degrees Fahrenheit)

What happens if heat is added to ice?

• It melts into a liquid.

• It freezes into a solid.

• It evaporates into gas.

• It remains unchanged.

What is the process called when a gas turns into a liquid?

• Evaporation

• Condensation

• Sublimation

• Precipitation