Thermal Energy Review

Which material is the best conductor of heat?

• glass
• styrofoam
• metal
• wood

Why does a metal lawn chair get hot in the sun when the grass sitting in the same sunlight remains cool to the touch?

• Heat travels easily through plants but not metals.
• Heat travels easily through both plants and metals.
• Heat travels easily through metal objects but not through plants.

Conduction can only occur between two objects when –

• one object is less dense than the other.
• both objects are in physical contact with each other.
• one of the objects is made of a metal.
• both objects are exactly the same temperature.

Which of the following is an example of conduction?

• Solar energy warming a room.
• Heat rising from the coils of a stove.
• Hot air drying a wet towel.
• Heat moving from a clothes iron to a shirt.

Which of the following are kinds of heat transfer.

• Conduction
• Convection
• Radiation
• All of the above

Convection is heat transfer by-

• Touch an object
• The heating and cooling of a fluid
• Electromagnetic Waves

Radiation is heat transfer by-

• Touch
• Circles
• Waves

In what direction do hot liquids and gasses move?

• Side to Side
• Down
• Up
• Back and Forth

The way the heat is moving from the hot coffee is called...

• convection
• radiation
• insulation
• conduction

When the 2nd story of a house is warmer than the 1st floor of a house is heat transfer through 

• conduction
• convection
• radiation
• thermal equilibrium