Thermal Energy and Heat

Average kinetic energy of particles in an object.

• Temperature

• Thermal Energy

• Heat

What will happen if you heat a liquid to high temperatures?

• It will become a suspension.

• It will become a gas.

• It will become a solid.

• It will become plasma.

Will an ice cube change states at the temperature shown?

• Yes

• No

What happens to molecules when the temperature reaches absolute zero?

• They move so fast that they cant be observed.

• The begin to vibrate slowly.

• All of their motion stops completely.

• They form bonds with other nearby molecules.

Energy transferred from an object at a higher temperature to an object at a lower temperature.

• Temperature

• Heat

• Thermal Energy

What is the difference between heat and temperature?

• Temperature measures the motion of molecules, and heat is the energy of that motion

• Temperature is measured by a thermometer, and heat is measured by a barometer.

• Heat is measured in calories, and temperature is measured in joules.

• Heat is caused by the sun, and temperature is caused by conditions in the atmosphere.

Heat energy is always transferred from ______ to _______.

• Cold, warm

• Warm, cold

Determined by the temperature and total amount of particles in a substance.

• Temperature

• Thermal Energy

• Heat

Why is there more heat in an iceberg than in a pot of boiling water?

• The pot insulates the heated molecules.

• Most icebergs are fairly warm to the touch.

• Icebergs contain many more molecules than pots of water.

• Water does not hold heat very well.

What are two ways we can measure heat?

• Joules

• Celsius

• Calories

• Farenheight