Energy Transformation 5.8A

Which are examples of transformations of mechanical to sound energy?

Choose THREE correct answers.

• A bell rings.

• A firework explodes.

• A boy bangs on a drum.

• Tires squeal on the pavement.

• A black surface heats up in the sun.

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NGSS.MS-PS4-1

Which of these BEST describes the energy transformation taking place at Label A?

• light to solar

• solar to light

• solar to electrical

• electrical to light

Juanita investigates how different communities get energy. She examines and compares models of two different power plants to see what energy transformations take place.

How can Juanita’s comparison be completed?

In the natural gas power plant, energy is transformed from​ (a)  

to mechanical energy to ​ (b)   energy to provide energy for the community.

In the hydroelectric power plant, energy is transformed from​ (c)  

to electrical energy to provide energy for the community.

• chemical
• electrical
• mechanical
• light
• sound
• thermal

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NGSS.MS-PS3-4

NGSS.MS-PS3-5

Trevor wants to make a cup of tea. He puts a teakettle filled with water on a gas stove. After a few minutes the water inside begins to boil, which causes the teakettle to steam and whistle.

Which statement BEST describes the energy transformations that are taking place in the system?

• lectrical energy from the gas transforms to sound energy in the whistle.

• Energy is created by the stove and transformed and destroyed by the boiling water in the teakettle.

• Energy is transformed from sound energy in the whistle to mechanical to thermal to chemical within the system.

• Chemical energy in the gas is transformed to thermal energy to heat the water and form steam, then mechanical energy from the steam produces sound energy.

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NGSS.HS-PS3-4

You are learning about energy transformations in science class. Mel and Sam built this set-up to see if light energy could be transformed into _________ energy.

• heat

• light

• mechanical

• solar

Querida investigates the energy transformations in her favorite amusement park ride and draws this diagram.

How can the energy transformations shown on Querida’s labeled diagram be described?

​

LABEL 1:​ ​ (a)  

LABEL 2:​ ​ ​ (b)  

LABEL 3:​ (c)  

• electrical to mechanical
• mechanical to sound
• mechanical to thermal

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NGSS.MS-PS3-4

NGSS.MS-PS3-5

Within the alarm clock seen here, energy is transformed. It is time to get up! The alarm clock goes off. What are the energy transformations taking place in your alarm clock?

• electrical to magnetic to sound

• electrical to mechanical to sound

• electrical to mechanical to light

• chemical to electrical to mechanical

Electrical Energy Diagram (look at picture)

In order for the electrical energy created by the solar panel to get to the house, what type of material should be used to create the connection?

• copper

• cotton

• rock

• wood

Which item shown in the house is an example of electrical energy being transformed into mechanical energy?

• lightbulb

• clock

• oven

• speakers

A windmill converts the mechanical energy of wind into _________ energy produced by a generator.

• heat

• nuclear

• chemical

• electrical