Energy Unit Test Review 2022-2023

The ability to do work.

• power

• velocity

• heat

• energy

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When you rub your hands together on a cold day, you use friction to convert

• electrical energy into electromagnetic energy

• thermal energy into nuclear energy

• mechanical energy into thermal energy

• nuclear energy into electrical energy

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The energy associated with motion.

• thermal energy

• static electricity 

• kinetic energy

• potential energy

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Stored energy that results from the position or shape of an object.

• kinetic energy

• potential energy

• thermal energy

• mechanical energy

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Which of the following statements is true about potential and kinetic energy? 

• Position 1 has the highest potential energy and the highest kinetic energy

• Position 3  has the highest potential energy and the lowest kinetic energy

• Position 2 has the highest potential energy and the lowest kinetic energy

• Position 1 has the lowest potential energy and the lowest kinetic energy

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Kinetic energy increases as 

• mass increases and velocity decreases

• both mass and velocity increase

• both mass and velocity decrease

• mass decreases and velocity increases

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The law of conservation of energy states that when one form of energy is converted to another...

• energy is created in the process

• energy is destroyed in the process

• energy is neither created or destroyed in the  process.

• both a & b

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When water boils in a pan on a hot burner, heat gets to the water mainly by

• radiation of heat through the pan.

• conduction of heat through the pan.

• absorption of heat from the air in the room.

• reflection of heat from the burner.

What is the process by which heat energy gets to Earth from the Sun?

• Convection

• Radiation

• Reflection

• Conduction

Patti used a steel wrench to work on her bicycle on a hot, sunny day. She left the wrench on the hot concrete surface for an hour while she had lunch. When she returned, the wrench was very hot to touch. What is the BEST explanation for how the wrench got so hot?

• Heat transferred from the concrete to the wrench.

• Heat transferred from the wrench to the air.

• Heat transferred from the bicycle to the wrench.

• Heat transferred from the wrench to the concrete.