U3L2 Energy Transfer

What is thermal energy?

• the total kinetic energy of all the particles in an object

• the average kinetic energy in an object

• the total transfer of kinetic energy between two objects

• the average transfer of kinetic energy between two objects

A lizard sits on a hot rock to get warm. What type of thermal energy transfer is occurring?

• conduction

• convection

• radiation

• kinetic

The sun heats up the road. What type of thermal energy transfer is occurring?

• conduction

• convection

• radiation

• kinetic energy

What is heat in science?

• A temperature

• The opposite of cold

• Transfer of energy

What has more thermal energy?

• 10g Ice

• 10g Boiling Water

• 10g Room Temperature Water

What has more thermal energy?

• Jar of boiling water

• Iceberg

At the same temperature, the bigger an item the more thermal energy it has *

• True

• False

Thermal energy is transferred throughout liquids and gases through what? *

• conduction

• convection

• radiation

• kinetic

A hot potato at 80 °C is placed in a bowl of soup at 40 °C. The surrounding room is at 20 °C. Which correctly describes the directions of thermal energy transfer? *

• room to soup, and soup to potato

• room to soup, and room to potato

• soup to potato, and potato to room

• potato to soup, soup to room

The Average Kinetic Energy of an object is its....

• Heat

• Temperature

• Energy

• Potential Energy