Energy Transformations

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, typically related to its height above the ground.

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NGSS.MS-PS3-2

Front

Which factors affect gravitational potential energy?

Back

Gravitational potential energy depends on the mass of the object, the height above a reference point, and the strength of the gravitational field.

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NGSS.MS-PS3-2

Front

What type of energy is stored in food, batteries, and gasoline?

Back

Chemical energy.

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

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Front

How does the speed of an object relate to its kinetic energy?

Back

The kinetic energy of an object increases with the square of its speed; as the speed increases, the kinetic energy increases.

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NGSS.MS-PS3-1

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object has due to its motion, calculated as 1/2 mv², where m is mass and v is velocity.

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Front

What energy transformation occurs in a toaster?

Back

Electrical energy is transformed into thermal energy in a toaster.

Front

What is the formula for calculating gravitational potential energy?

Back

Gravitational potential energy (PE) can be calculated using the formula PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

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NGSS.MS-PS3-2

Front

What is the relationship between mass and kinetic energy?

Back

Kinetic energy is directly proportional to the mass of the object; as mass increases, kinetic energy increases if speed remains constant.

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NGSS.MS-PS3-1

Front

What happens to energy in a closed system according to the law of conservation of energy?

Back

In a closed system, the total energy remains constant; energy can change forms but the total amount does not change.

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