Heat and Temp

The heat from a lamp allows a lizard to remain warm. This is an example of which type of heat transfer?

• radiation
• conduction
• convection
• insulation

What is the definition of CONDUCTION?

• When heat is transferred from objects like rays of light or electromagnetically.
• a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
• When heat transfers from objects that are touching.
• When heat transfers through the heater or AC in your house.

What is the definition of CONVECTION

• When heat transfers through waves.

• When heat transfers from objects that are touching.

• warm fluid rises; cool fluid sinks

• Heat traveling from the sun

Warm air is __________ dense than cold air and rises creating convection currents.

• more
• less

What is the BEST example of a conductor? 

• A wooden block
• A ceramic mug
• A glass cup
• A metal bowl

An insulator . . .

• Allows a lot of heat to escape
• Makes the temperature of an object rise
• Moves heat from one place to another
• Traps heat inside an object

A jacket is a good example of an . . .

• Insulator
• Investigator
• Insider
• Interrogator

What is the BEST example of a conductor?

• A plastic toy
• A wooden table
• A styrofoam cup
• A metal shed

Emerson places a beaker of water on a hotplate and turns the hotplate on. The temperature in the room is 25 ºC. After the water heats to 75 ºC, she adds pieces of ice to the beaker.

Which of the following describes a transfer of heat energy that occurs during this experiment?

• from the air to the water

• from the ice to the beaker

• from the water to the ice

• from the water to the hotplate

Which description defines heat?

• total thermal energy of an object or substance

• change in the temperature of a substance in degrees Celsius

• energy transferred between objects with different temperatures

• average kinetic energy of the particles that make up a substance