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Putting reflecting films on your car window helps keep the interior cool by
Reflecting sunlight
The amount of energy stays the same but the energy changes form
The operation of the computer converts electrical energy to heat
As the students move around, their bodies release heat energy into the room
The car uses 20% of the energy stored in the gasoline for motion
Electrical to sound
Radiation
Calories
Which units are used for measuring energy?
Reflecting sunlight
The amount of energy stays the same but the energy changes form
The operation of the computer converts electrical energy to heat
As the students move around, their bodies release heat energy into the room
The car uses 20% of the energy stored in the gasoline for motion
Electrical to sound
Radiation
Calories
A car was sitting in sunlight all day long. The heat that is in the car now was transferred into the car by which of the following processes?
Reflecting sunlight
The amount of energy stays the same but the energy changes form
The operation of the computer converts electrical energy to heat
As the students move around, their bodies release heat energy into the room
The car uses 20% of the energy stored in the gasoline for motion
Electrical to sound
Radiation
Calories
Solar panels used light energy from the sun to create electricity. Which of these statements describes what happens to the energy during this process?
Reflecting sunlight
The amount of energy stays the same but the energy changes form
The operation of the computer converts electrical energy to heat
As the students move around, their bodies release heat energy into the room
The car uses 20% of the energy stored in the gasoline for motion
Electrical to sound
Radiation
Calories
The efficiency of an average gasoline powered car is about 20%. This means
Reflecting sunlight
The amount of energy stays the same but the energy changes form
The operation of the computer converts electrical energy to heat
As the students move around, their bodies release heat energy into the room
The car uses 20% of the energy stored in the gasoline for motion
Electrical to sound
Radiation
Calories
Most computers have fans to keep the computer from overheating. Which of these BEST describes why this is necessary?
Reflecting sunlight
The amount of energy stays the same but the energy changes form
The operation of the computer converts electrical energy to heat
As the students move around, their bodies release heat energy into the room
The car uses 20% of the energy stored in the gasoline for motion
Electrical to sound
Radiation
Calories
A group of students walk into a cold classroom. After several minutes, they feel as though the temperature in the room has increased. Which of these statements BEST describes why the room feels warmer to the students?
Reflecting sunlight
The amount of energy stays the same but the energy changes form
The operation of the computer converts electrical energy to heat
As the students move around, their bodies release heat energy into the room
The car uses 20% of the energy stored in the gasoline for motion
Electrical to sound
Radiation
Calories
What energy transformation takes place when a radio is plugged in and turned on?
Reflecting sunlight
The amount of energy stays the same but the energy changes form
The operation of the computer converts electrical energy to heat
As the students move around, their bodies release heat energy into the room
The car uses 20% of the energy stored in the gasoline for motion
Electrical to sound
Radiation
Calories
Check it!