Energy Transformations

Electrical energy is...

• the energy form originated by electromagnetic waves or fields.

• the energy type due to the movement of electrons.

• the energy form which is present in vibrations in air.

The total energy in our universe...

• will not change, but can transform to other types.

• changes and expands over time.

• only changes form once.

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-3

Food chains and food webs are examples of energy transformations.

• True

• False

Tags

NGSS.MS-LS2-3

Chemical energy is...

• the energy of electric currents.

• the energy of electromagnetic waves.

• energy stored in bonds between atoms.

Tags

NGSS.MS-LS1-7

Which example shows energy transformation from electrical to mechanical to sound?

• a digital bathroom scale

• a deer eating grass

• a pencil sharpener plugged into an outlet

Which shows light energy transforming into chemical energy?

• a battery turning on a fan

• a broken glow stick

• a plant making its own food in the sunlight

Tags

NGSS.MS-LS1-6

Which represents the energy transformation of chemical to light?

• a burning candle

• an electric toaster

• a lamp plugged into a socket

Tags

NGSS.MS-PS1-6

What kind of energy changes when a candle is burning?

• chemical to light

• light to electrical

• solar to heat

• chemical to electrical

Tags

NGSS.MS-PS1-2

Which type of energy transfer occurs when a flashlight shines?

• chemical➡thermal➡electrical

• chemical➡electrical➡light

• thermal➡chemical➡light

• chemical➡electrical➡chemical

When water falls through a dam and turns a turbine connected to a generator, electricity is produced. The electricity is used to light a home. Which shows the energy transformation?

• electrical➡light➡mechanical

• chemical➡mechanical➡electrical

• mechanical➡chemical➡light

• mechanical➡electrical➡light

Tags

NGSS.MS-PS3-5