Unit 7 Review

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state. For example, a ball held at a height has potential energy because of its position above the ground.

Tags

NGSS.MS-PS3-2

Front

What is mechanical energy?

Back

Mechanical energy is the total energy of an object due to its motion (kinetic energy) and its position (potential energy). For example, water falling from a waterfall has mechanical energy.

Front

What is sound energy?

Back

Sound energy is the type of energy that is produced when vibrations travel through air or another medium. For example, when a guitar string vibrates, it creates sound energy.

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Front

How does carrying a full bucket differ from carrying an empty bucket in terms of energy?

Back

Carrying a full bucket requires more energy than carrying an empty bucket because the full bucket has more weight.

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NGSS.MS-PS3-5

Front

What factors affect the energy produced by a wind turbine?

Back

The energy produced by a wind turbine is affected by wind speed, the size of the turbine, and the efficiency of the turbine.

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NGSS.MS-ETS1-4

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. The faster an object moves, the more kinetic energy it has.

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Front

What is the relationship between height and potential energy?

Back

The higher an object is positioned, the more potential energy it has. For example, a ball on a high shelf has more potential energy than a ball on the floor.

Tags

NGSS.MS-PS3-2

Front

What is the formula for calculating kinetic energy?

Back

The formula for kinetic energy (KE) is KE = 1/2 mv², where m is mass and v is velocity.

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NGSS.MS-PS3-1

Front

What is energy transfer?

Back

Energy transfer is the process of energy moving from one object or system to another. For example, when Miguel carries a bucket of tomatoes, he transfers energy to the bucket.

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NGSS.MS-PS3-5

Front

What is the role of wind in generating energy?

Back

Wind is a renewable energy source that can be harnessed by wind turbines to produce electrical energy.

Tags

NGSS.MS-PS3-5