Heat Review

Which item gives off heat energy?

• fire in a fireplace

• thermometer

• ice

• sound

As an ice cube melts, the particles in the ice cube

• move slower and slower

• lose thermal energy

• gain thermal energy

• don't change at all

Which material heats up MOST when the sun is shining on it?

• a black rock

• a white flag

• snow

• yellow shirt

While students are waiting at the bus stop on a cold winter morning, they rub their hands together and feel their hands becoming warmer. What question can students ask to help them identify the reason their hands feel warm?

• Is the sunlight warming their hands?

• Is friction produced when the students rub their hands together causing them to feel warm?

• Are the exhaust fumes from the school bus causing the air to heat up around the students?

• Is the blood rushing to their fingertips because they are very cold?

Monica is helping her mom fold laundry. She notices that the towels are very warm when they come out of the dryer. What question can help Monica learn what type of heat energy is making the towels feel warm?

• Is the static electricity causing the towels to heat up in the dryer?

• Is the energy caused by sunlight heating up the dryer when it is turned on?

• Is energy created by electricity causing the dryer to become warm and heat up the towels?

• Is friction caused by the towels rubbing together in the dryer causing them to become warm?

How does a toaster cook bread?

• friction

• electricity

• burning fuels

The energy of moving particles in matter is called

• thermal energy

• solar energy

• friction

Daniel forgot to wear his jacket to recess. It is a sunny day but it is 42 degrees outside.What should Daniel do in order to stay as warm as possible?

• Daniel should stand in the sun and stay as still as possible.

• Daniel should stand in the shade and stay as still as possible.

• Daniel should stand in the sun and rub his hands up and down his arms.

• Daniel should stand in the shade and rub his hands up and down his arms.

About what temperature does the thermometer show?

• 80 degrees F

• 20 degrees F

• 120 degrees F

Suppose the temperature outside increases to 90. What will happen to the liquid in the thermometer?

• It will go down the tube.

• It will take up less space in the tube.

• It will rise in the tube.