S8P2.a and b Potential and Kinetic energy

Front

What is kinetic energy?

Back

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

Tags

NGSS.MS-PS3-1

Front

What is potential energy?

Back

Potential energy is the stored energy of an object due to its position or state, commonly associated with gravitational potential energy, 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 does kinetic energy change as an object moves up a hill?

Back

As an object moves up a hill, its kinetic energy decreases because its speed decreases, while its potential energy increases due to the increase in height.

Tags

NGSS.MS-PS3-5

Front

At what point in a roller coaster ride is kinetic energy the highest?

Back

Kinetic energy is highest at the bottom of the hills where the speed of the roller coaster is greatest.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Front

What happens to potential energy when an object is lifted higher?

Back

When an object is lifted higher, its potential energy increases because it is at a greater height.

Tags

NGSS.MS-PS3-2

Front

How can two objects have the same kinetic energy?

Back

Two objects can have the same kinetic energy if they have different masses and speeds that result in the same value when plugged into the kinetic energy formula KE = 1/2 mv².

Tags

NGSS.MS-PS3-1

Front

What is the relationship between kinetic energy and speed?

Back

Kinetic energy is directly proportional to the square of the speed; if the speed of an object doubles, its kinetic energy increases by a factor of four.

Tags

NGSS.MS-PS3-1

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the potential energy an object has due to its height above the ground, calculated using the formula PE = mgh.

Tags

NGSS.MS-PS3-2

Front

How does the total mechanical energy of a system change in a closed system?

Back

In a closed system, the total mechanical energy (the sum of kinetic and potential energy) remains constant, assuming no energy is lost to friction or air resistance.

Front

What is the principle of conservation of energy?

Back

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

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5