kinetic and potential energy

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion. It is calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state. It is often associated with the height of an object above the ground and is calculated using the formula PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Tags

NGSS.MS-PS3-2

Front

How do you calculate kinetic energy?

Back

Kinetic energy (KE) is calculated using the formula KE = 1/2 mv², where m is the mass of the object and v is its velocity.

Tags

NGSS.MS-PS3-1

Front

How do you calculate potential energy?

Back

Potential energy (PE) is calculated using the formula PE = mgh, where m is the mass of the object, g is the acceleration due to gravity (approximately 9.81 m/s²), and h is the height above the ground.

Tags

NGSS.MS-PS3-2

Front

What factors affect potential energy?

Back

Potential energy depends on two main factors: mass and height. The greater the mass or the higher the object is positioned, the more potential energy it has.

Tags

NGSS.MS-PS3-2

Front

What is the relationship between kinetic energy and speed?

Back

Kinetic energy is directly related to the square of the speed of an object. If the speed doubles, the kinetic energy increases by a factor of four.

Tags

NGSS.MS-PS3-1

Front

At what point is kinetic energy greatest in a falling object?

Back

Kinetic energy is greatest just before the object hits the ground, as it has converted most of its potential energy into kinetic energy.

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NGSS.MS-PS2-2

NGSS.MS-PS3-5

Front

What is an example of an object with kinetic energy?

Back

A tennis ball rolling across the court is an example of an object with kinetic energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Front

What is an example of an object with potential energy?

Back

A car parked on a steep hill has potential energy due to its height above the ground.

Tags

NGSS.MS-PS3-2

Front

What happens to potential energy as an object falls?

Back

As an object falls, its potential energy decreases while its kinetic energy increases, assuming no energy is lost to air resistance.

Tags

NGSS.MS-PS3-2