Thermal (Heat) Energy

The movement of thermal energy from a warmer object to a cooler object is called:

• heat
• temperature
• motion
• momentum

If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____________

• one reaches a temperature of zero

• they both have an equal temperature

• one runs out of energy

The Law of Conservation of Energy states:

• Energy can created or destroyed but not transformed 
• Energy cannot be created or destroyed, it can only transformed
• Energy can't be created, destroyed or transformed

Heat transfer by convection happens when:

• there is a circulation of hot air/water rising and cold air/water sinking

• there is space that heat travels through in waves outwardly

• two objects are touching and heat moves from one object into the next object.

Heat transfer by conduction happens when:

• there is a circulation of hot air/water rising and cold air/water sinking

• there is space that heat travels through in waves outwardly

• two objects are touching and heat moves from one object into the next object

A hot air balloon rising and falling as the balloon's air is heated or cooled is an example of which type of energy transfer?

• radiation

• convection

• conduction

Holding a hot cup of cocoa is an example of which type of heat transfer?

• convection

• conduction

• radiation

Thermal energy traveling though space from the sun toward earth in waves is an example of which type of heat transfer?

• convection

• conduction

• radiation

Lava in a lava lamp rising and falling as its heated and cools is an example of:

• conduction

• convection

• radiation

What is the intended type of energy for this hair dryer?

• mechanical
• thermal
• electrical
• light