Matter and Energy Review

Front

In electric ovens, the heat in the oven comes from the bottom when you bake something. However, cookies baking on the top shelf get done before cookies on the bottom shelf, even though the bottom shelf is closer to the heat source. What is this process called?

Back

Convection

Front

Which of the following describes the relationship between temperature differences, circulation of air, and wind blowing along the surface of the earth?

Back

Temperature differences cause warm air to rise and cold air to sink, which leads to circulation of the air that causes wind to blow along the surface of the earth.

Front

A jar of water is placed over a flame and the flame warms the water at the bottom of the jar. What happens to the water?

Back

As the water at the bottom of the jar becomes a little warmer than the water around it, the warmer water will start to rise.

Front

In which of the following can a convection current occur?
Options:
In gases but not in liquids or solids,
In liquids but not in solids or gases,
In liquids and gases but not in solids

Back

In liquids and gases but not in solids

Front

What will happen to the colder air when it comes into contact with the warmer air in the classroom?

Back

The cold air will sink toward the floor.

Front

Matter that is rapidly moving, less dense, will rise up and expand.

Back

These are the properties of heated matter.

Front

Matter that is moving slowly will come closer together and therefore become more dense and sink. These are properties of cooled matter.

Back

These are properties of cooled matter.

Front

Identify the FALSE statement: Cold is the absence of heat., Heat is transferred from one object to another. Heat moves from the warmer object to the cooler object., Cold is transferred from one object to another.

Back

Cold is transferred from one object to another.

Front

Solar energy heats our atmosphere by conduction.

Back

False

Front

Once the air molecules are heated by Earth's surface they continue to transfer TE by

Back

both