Energy Transformations

Multiple Choice

What does the Law of Conservation of Energy state?

• energy is always created, but not destroyed

• energy cannot be created or destroyed

• energy cannot be created, but can be destroyed

• energy is always being created and destroyed

Multiple Choice

_______________________ is stored energy to position or arrangement of particles in an object.

• Kinetic energy

• Potential energy

• Thermal energy

• Electrical energy

Multiple Choice

Which of these has kinetic energy?

• a book sitting on a shelf

• hat and gloves on a table

• cars parked in a parking lot

• a child kicking a soccer ball

Multiple Choice

Which diagram models the position of a soccer ball when it has the greatest amount of gravitational potential energy?

Multiple Choice

The diagram shows a cart moving freely along a track. What happens to the energy of the cart as it moves from point A to point B on the diagram?

• Potential energy is transformed to kinetic energy.

• Kinetic energy is transformed to potential energy.

• Both potential energy and kinetic energy stay the same.

Drag and Drop

​

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energy in the food changes into ​

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energy the student uses to move around

Drag these tiles and drop them in the correct blank above

chemical

kinetic

nuclear

electrical

radiant

thermal

Drag and Drop

The ​

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energy from the outlet transforms into ​

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energy to provide light to the room, but also ​

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energy (gets hot).

Drag these tiles and drop them in the correct blank above

electrical

radiant

thermal

nuclear

mechanical

Drag and Drop

The battery powered clock transforms ​

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energy into ​

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(sound) and ​

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(light from the display).

Drag these tiles and drop them in the correct blank above

chemical

mechanical

radiant

electrical

nuclear

Drag and Drop

Energy from the Sun (​

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) travels as light (​

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) to solar panels, becoming electricity that is sent to houses and businesses (​

Placeholder

).

Drag these tiles and drop them in the correct blank above

nuclear

radiant

electrical

thermal

chemical

Multiple Choice

What is energy?

• Force

• The ability to do work

• Electricity

• The ability to transform work

Multiple Choice

 

Which type of energy is best seen in the picture?

• Chemical

• Sound

• Electrical

• Radiant

Multiple Choice

Which type of energy is shown?

• Sound

• Radiant

• Mechanical

Multiple Choice

What type of energy is seen here?

• Sound

• Nuclear

• Thermal

• Mechanical

Multiple Choice

Which of the following changes electrical energy into radiant (light) and sound energy?

• battery

• alarm clock

• light bulb

• apple

Multiple Choice

What kind of energy does this device use?

• Mechanical

• Chemical

• Electrical

• Radiant

Multiple Choice

What type of energy do we use to cook food?

• Radiant

• Electrical

• Nuclear

• Thermal

Multiple Choice

This is the energy of vibrating molecules that move through matter. 

• sound

• thermal

• nuclear

• radiant

Multiple Choice

This is the energy that moves objects. 

• Thermal

• Electrical

• Mechanical

• Sound

Multiple Choice

Energy associated with the motion of particles in a substance.

• Thermal

• Radiant

• Electrical

• Sound

Multiple Choice

Sound energy is produced when an object __________.

• moves

• heats up

• vibrates

• falls

Multiple Choice

Which type of energy is produced when the handle of a pencil sharpener turns?

• Radiant

• Electrical

• Mechanical

• Thermal

Often one form of energy can change into more than one form.

Chemical-> Heat-> Kinetic-> Electrical-> Heat

Multiple Select

When wood burn it changes from chemical energy to what 2 other forms of energy? Click the 2 other forms.

• Radiant (Light)

• Nuclear

• Heat

• Mechanical

Multiple Select

A gasoline-powered generator is used to provide lighting for a house.

Choose the best 3 energy forms found in this transformation example?

• Chemical

• Mechanical

• Light

• Nuclear

Multiple Choice

Skateboarder #1 is showing potential energy as he waits at the top of the half pipe.

Skateboarder #2 has dropped into the half pipe, to what type of energy has he converted his potential energy?

• Potential

• Thermal

• Kinetic

• Chemical

Food is chemical energy used to make the body function.

• It is converted into kinetic energy to help the body move

• It is also converted into thermal energy to keep the body warm.

Energy Conversion in Plants

• Chemical energy stored in the food we eat ultimately comes from the sun.

• The process is called photosynthesis. Light energy is converted into chemical energy.

Energy Conversions are needed in EVERYTHING we do.

(Think of what you do everyday.)

Some examples of energy conversions