Work and Energy Transformations

During a movie night at Avery's house, Henry and William were curious about how the energy transfers on the T.V. they were watching. Can you explain it to them?

• The sun shines on the T.V., converting solar energy to light energy, which then turns into thermal energy.

• The T.V. uses electricity, which is then converted to solar energy and finally to mechanical energy.

• The T.V. uses nuclear energy, which is then converted to electricity.

• The T.V. uses electrical energy, which is then converted to light and sound energy.

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Evelyn, Elijah, and Avery are discussing the Law of Conservation of Energy in their physics class. They agree that according to this law, energy cannot be _________ or ____________. 

• destroyed, destroyed

• created, saved

• created, destroyed

• lost, found

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Kai is riding his bicycle, and then he uses the brakes to stop. What is this an example of, in terms of energy?

• energy conservation

• energy transformation

• energy creation

• mechanical energy

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Scarlett, Luna, and Lily are learning about energy conversion in their science class. Their teacher explained that when they fill up their family car with gasoline, a certain type of energy conversion takes place. What type of energy conversion is it?

• thermal -> electrical

• mechanical -> electrical

• chemical -> mechanical

• mechanical -> electromagnetic

Oliver and Liam are working on a science project. They need to use a battery. What type of energy is stored in the battery that they are using?

• electrical

• chemical

• thermal

• mechanical

Abigail is heating up her lunch in a microwave. What kind of energy transformation is happening in this process?

• Solar > sound > light

• Electrical > thermal

• Electrical > electromagnetic > thermal

• Chemical > sound

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Aiden, Mia, and James are working on a science project. They are using a solar panel to power a small fan. Here, the Solar Energy is transferred to _____ Energy.

• Mechanical

• Solar

• Sound

• Electrical

Oliver uses an electric heater to warm his room. The Electrical Energy from the heater is transferred to _____ Energy.

• Thermal

• Solar

• Electrical

• None

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When Benjamin rides his bicycle, the Mechanical Energy is transferred to _____ Energy.

• Solar

• Mechanical

• Electrical

• Potential

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David, Noah, and Nora are using a microwave oven to heat their lunch at school. As they operate the microwave oven, they notice that electrical energy is transformed into several types of energy. However, there is one type of energy that the microwave does NOT transform electrical energy into. Which one is it?

• solar

• light

• thermal

• mechanical