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WorksheetsMatter and Energy Review
Total questions: 10
Worksheet time: 10mins
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
Solar Energy
Conduction
Convection
Which of the following describes the relationship between temperature differences, circulation of air, and wind blowing along the surface of the earth?
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.
Temperature differences cause warm air to rise and cold air to sink, but this movement does not lead to circulation of the air, and therefore does not cause wind to blow along the surface of the earth.
Circulation of the air causes the wind to blow along the surface of the earth, but the circulation is not caused by temperature differences.
A jar of water is placed over a flame and the flame warms the water at the bottom of the jar.
The water at the bottom of the jar will get warmer and warmer, but it will not rise until it starts to boil.
The water at the bottom of the jar will get warmer, but it will not rise.
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.
Convection currents are one way that thermal energy can be transferred. In which of the following can a convection current occur?
In gases but not in liquids or solids
In liquids but not in solids or gases
In liquids and gases but not in solids
A teacher opens a window in her classroom, letting in air that is colder than the air inside the classroom.
What will happen to the colder air when it comes into contact with the warmer air in the classroom?
The cold air will stay at the same height as the window, neither rising nor sinking.
The cold air will sink toward the floor.
The cold air will sink if it is much colder than the air around it; but if it is only a little colder than the air around it the cold air will not sink.
Matter that is rapidly moving, less dense, will rise up and expand.
These are the properties of heated matter.
These are the properties of cooled matter.
Matter that is moving slowly will come closer together and therefore become more dense and sink.
These are properties of heated matter.
These are properties of cooled matter.
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.
Solar energy heats our atmosphere by conduction.
True
False
Once the air molecules are heated by Earth's surface they continue to transfer TE by
conduction
convection
both
