Kinetic, Potential, and Mechanical Energy

What type of energy is associated with an object in motion?

• Thermal energy

• Chemical energy

• Potential energy

• Kinetic energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

When a ball is thrown into the air, what type of energy does it have at the highest point of its trajectory?

• Chemical energy

• Thermal energy

• Potential energy

• Kinetic energy

Tags

NGSS.MS-PS3-2

Explain how potential energy can be transformed into kinetic energy.

• Potential energy can be transformed into kinetic energy by increasing the object's mass.

• An object falling due to gravity converts potential energy into kinetic energy.

• Potential energy is always converted into heat energy instead of kinetic energy.

• Potential energy is transformed into kinetic energy by reducing the object's speed.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Give an example of a situation where mechanical energy is conserved.

• Swinging pendulum

• Running car

• Rolling ball

• Falling apple

Tags

NGSS.MS-PS3-5

How does a roller coaster demonstrate the transformation of energy between kinetic and potential?

• The roller coaster only uses kinetic energy throughout the ride

• The roller coaster demonstrates the transformation of energy between kinetic and potential by converting kinetic energy into potential energy when climbing and potential energy back into kinetic energy when descending.

• The roller coaster does not involve any energy transformation

• The roller coaster converts potential energy into sound energy

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What happens to the total mechanical energy of a system if there are no external forces acting on it?

• It decreases

• It becomes negative

• It remains constant

• It oscillates

Tags

NGSS.MS-PS2-2

Describe the energy transformation that occurs when a pendulum swings back and forth.

• Potential energy is converted to light energy

• Kinetic energy is converted to thermal energy

• Potential energy is converted to sound energy

• Potential energy is converted to kinetic energy and vice versa.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

In a simple pendulum, where is the potential energy at its maximum?

• At the lowest point of the swing

• At the starting point of the swing

• At the midpoint of the swing

• At the highest point of the swing

Tags

NGSS.MS-PS3-2

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

• In a system, kinetic energy and potential energy are always equal.

• Kinetic energy and potential energy in a system are unrelated.

• As kinetic energy increases, potential energy also increases.

• In a system, as kinetic energy increases, potential energy decreases, and vice versa.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Explain how energy is conserved in a closed system during various energy transformations.

• Energy is conserved in a closed system due to the law of conservation of energy.

• Energy is created in a closed system during energy transformations.

• Energy is only conserved in open systems, not closed systems.

• Energy is lost in a closed system during energy transformations.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5