Energy Transformations Quiz

What's the first law of thermodynamics?

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Identify these types of energy as kinetic or potential energy.

Groups:

(a) Kinetic

,

(b) Potential

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What type of energy transformation occurs in a solar panel?

• Electrical to mechanical

• Light to electrical

• Mechanical to chemical

• Light to thermal

How does a wind turbine change forms of energy?

• Mechanical to electrical

• Electrical to mechanical

• Mechanical to light

• It is unable to change forms

The blades of a toy helicopter spin when its circuit is connected to a battery. Create the a sequence below that correctly identifies the energy changes taking place in the helicopter. Assume the system is seamless and doesn't lose energy as heat.

• chemical energy

• mechanical energy

• electrical energy

• sound energy

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NGSS.MS-PS3-5

Two students place three ice cubes in a glass of water that was at room temperature. Which of the following scenarios would best describe the results of the investigation?

• Energy from the water will transfer to the ice cubes, causing the ice to melt.

• Cold from the ice cubes will transfer to the water, causing the water to cool.

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Which of the following best describes the energy transformation in a battery-powered flashlight?

• Chemical to electrical to light

• Electrical to chemical to light

• Mechanical to electrical to light

• Light to electrical to chemical

A bird, flying in the sky, dives into a river to catches a meal for dinner. Explain the energy transformations. Include at least two transformations.

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Explain the energy transformations in a radiometer. Include at least two energy transformations.

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Draw a lewis-dot diagram of a molecule of water: H₂O. Please remember that Hydrogen has 1 electron in its valence shell. While Oxygen has 6 electrons in its valence shell.

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NGSS.MS-PS1-1