Thermal Energy

Front

A barefoot student steps on a hot concrete surface. Most of the heat transferred to the student’s skin by this contact is by the process of— Options: convection, conduction, vaporization, radiation

Back

conduction

Front

The primary method of heat transfer in a solid iron bar being heated in a flame is— Options: convection, conduction, absorption, radiation

Back

conduction

Front

A student opens the top window and the bottom window in a hot room. What statement best describes the heat transfer occurring in the room? Options: conduction, radiation, convection, evaporation

Back

convection

Front

What is conduction?

Back

Direct touch

Front

Convection

Back

Air or liquids

Front

What is radiation?

Back

Heat waves/ light waves

Front

How does air travel?

Back

hot to cold

Front

How do molecules at warm temperatures differ from molecules at cool temperatures?

Back

At warm temperatures, molecules move around more.

Front

What is the difference between heat and temperature? Options: 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.

Back

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

Front

Why is there more thermal energy in an iceberg than in a pot of boiling water? Options: a. The pot insulates the heated molecules, b. Most icebergs are fairly warm to the touch, c. Icebergs contain many more molecules than pots of water, d. Water does not hold heat very well

Back

Icebergs contain many more molecules than pots of water