Physical Science - Unit 5 Extra Credit

Front

What is the energy required for phase changes?

Back

All phase changes (changing states) require energy to be added or taken away.

Front

What part of a temperature-time graph involves latent heat of vaporization?

Back

Part IV of the graph.

Front

What letter represents specific heat capacity?

Back

C

Front

What is the heat absorbed by melting a solid called?

Back

Latent heat of fusion.

Front

Which substance heats up slower: water, lead, granite, or iron?

Back

Water heats up slower.

Front

What is latent heat of fusion?

Back

The heat absorbed by a solid when it melts.

Front

What is latent heat of vaporization?

Back

The heat absorbed by a liquid when it vaporizes.

Front

Define specific heat capacity.

Back

The amount of heat required to raise the temperature of 1 kg of a substance by 1°C.

Front

What is the difference between heat and temperature?

Back

Heat is the energy transferred due to temperature difference, while temperature is a measure of the average kinetic energy of particles.

Front

What happens to the temperature of a substance during a phase change?

Back

The temperature remains constant during a phase change.