Energy Transformations

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.

Tags

NGSS.MS-PS3-5

Front

Define gravitational potential energy (GPE).

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, calculated as GPE = mgh, where m is mass, g is gravity, and h is height.

Tags

NGSS.MS-PS3-2

Front

What happens to energy during transformations?

Back

During energy transformations, energy changes from one form to another but the total amount of energy remains constant.

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-3

Front

What is an example of energy transformation from chemical to light to heat?

Back

Lighting a match is an example of energy transformation from chemical energy (in the match) to light energy (the flame) to heat energy.

Front

When does an object have the greatest gravitational potential energy?

Back

An object has the greatest gravitational potential energy when it reaches its highest point.

Tags

NGSS.MS-PS3-2

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Tags

NGSS.MS-PS3-1

Front

How do you calculate gravitational potential energy?

Back

Gravitational potential energy is calculated using the formula GPE = mgh, where m is mass in kilograms, g is the acceleration due to gravity (approximately 9.8 m/s²), and h is height in meters.

Tags

NGSS.MS-PS3-2

Front

What is an example of energy transformation in a fan?

Back

When a fan is turned on, electrical energy is transformed into mechanical energy to rotate the blades.

Front

What is the relationship between kinetic energy and potential energy in a swinging pendulum?

Back

In a swinging pendulum, kinetic energy is highest at the lowest point of the swing, while potential energy is highest at the highest points of the swing.

Tags

NGSS.MS-PS3-2

Front

What is the formula for kinetic energy?

Back

The formula for kinetic energy is KE = 1/2 mv².

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4