Energy Forms and Transformation

Standing at the top of a hill is an example of what kind of energy?

• potential

• kinetic

Tags

NGSS.MS-PS3-2

Where is the potential energy the greatest?

• A

• C

• E

• F

Tags

NGSS.MS-PS3-2

What is the energy transformation of a toaster?

• Chemical ---> Mechanical and Thermal

• Mechanical ---> Electrical and Sound

• Thermal ---> Electrical and Radiant

• Electrical ---> Thermal and Sound

A dog chasing a cat is an example of what type of energy?

• potential

• kinetic

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which energy transformation occurs when a match is lit?

• chemical to heat energy

• heat to potential energy

• electrical to heat energy

• kinetic to potential

Marcos has a new toy. When he plugs it in and turns it on, a marble is carries up to the top of the slide. At the top, the marble is released and it goes down the slide.

What kind of energy transformation occurs to make this toy work?

• chemical to heat

• electrical to chemical

• sound to electrical

• electrical to mechanical

Beginning with the source of energy, explain the energy transformation that takes in this circuit.

• chemical to light to heat

• chemical to electrical to light

• light to electrical to chemical

• light to chemical to electrical

In an investigation, a ball was released from the three difference positions shown. The speed of the ball was measured at the bottom of the ramp, after the ball was released from each position. Why was the speed greatest when the ball was released from the top position "1"?

• The ball lost energy to the environment as it rolled down the ramp.

• The ball had more potential energy at the top of the ramp.

• The ball gained potential energy as it rolled down the ramp.

• The ball had more kinetic energy at the top of the ramp.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

A student wound up a propeller in the toy plane shown. After he wound it up, he let it go.

What energy transformation occurred when he released the propeller?

• Gravitational potential energy transformed into kinetic energy.

• Elastic potential energy transformed into kinetic energy.

• Chemical kinetic energy transformed into spinning kinetic energy.

• Elastic kinetic transformed into spinning kinetic energy.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Does all of the electrical energy produced by this battery transform into light energy?

• Yes; because of the Law of Conservation of Energy.

• No; because the mass of the battery changes.

• Yes; because light bulbs are light producing devices.

• No; because some of it transforms into heat energy.

Tags

NGSS.MS-PS3-5