Thermal enery

When particles in matter move, they create __________.

• a thermometer

• frozen energy

• thermal energy

• water

To measure the temperature difference between two cups of water, you would use a _____.

• measuring cup
• ruler
• thermometer
• balance scale

Heat can be transferred from one material to another?

• False
• True

What is the average kinetic energy of all the particles in a material?

• Conductors

• Insulators

• energy transfer

• temperature

Which most often occurs when a pot of water boils?

• Condensation

• freezing

• melting

• evaporation

What happens when a cold drink sits in a hot room?

• It remains cold

• It gets warmer

• It starts boiling

• It starts to freeze

Which of the following best describes temperature?

• Number of molecules

• Motion of molecules

• Size of molecules

• Type of molecules

When two things are the same temperature:

• They have the same number of molecules

• Their molecules stop moving

• Their molecules move at the same average speed

• Heat transfer between the two things stops

Which direction is heat flowing in the picture?

• from the hand to the ice
• from the ice to the hand
• heat is not being transferred
• there is no way to tell

In heat transfer, heat always flows from the _______________ substance to the _______________ substance.

• Hotter to colder

• Colder to hotter

• Hotter to hotter

• Colder to colder