6.9 C

Some students observing a classroom device being used noticed the following energy transformations:

Electrical -> Mechanical -> Sound ->

Which device were the students most likely looking at?

• A triple beam balance measuing an object's mass

• A pencil sharpener plugged into a wall outlet

• A projector displaying a diagram on the screen

• A working flashlight used to light up a dark corner

Tags

NGSS.HS-PS3-3

Which of these is an example of light energy being transformed into chemical energy?

• A glow stick lights up when broken

• Water heated by the sun evaporates

• A plant makes sugar in the sunlight

• A batter causes a buzzer to vibrate

Tags

NGSS.MS-LS1-6

Which kind of energy change occurs when a candle is burning?

• Chemical to light

• Light to electrical

• Solar to heat

• Chemical to electrical

Tags

NGSS.HS-PS1-4

Which type of energy transformation occurs when a flashlight shines?

• Chemical -> thermal -> electrical

• Chemcial -> 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. This electricity is often used to light our homes and offices. Which of the following shows the energy transformations that occur?

• electrical -> light -> mechanical

• chemical -> mechanical -> electrical

• mechanical -> chemical -> light

• mechanical -> electrical -> light

The picture shows a light bulb attached to a hand generator. What energy transformation occurs as the handle of the generator is turned?

• Thermal to Solar to Light

• Solar to Light to Electrical

• Mechanical to Electrical to Light

• Electrical to Mechanical to Light

Which of the following transforms chemical energy into light energy?

• A timer running on a battery

• a compass

• a lamp plugged in to the wall outlet

• a burning candle

A light bulb being powered by a battery. How does the energy change as it moves inside the battery, along the wires and through the light bulb?

• electrical to light to chemical

• light to electrical to chemical

• chemical to electrical to light

• chemical to light to electrical

Tags

NGSS.HS-PS1-4

Which of the following shows the energy transformation that occurs when solar panels are used to heat a building?

• light to thermal

• chemical to electrical

• thermal to chemical

• light to mechanical

Tags

NGSS.HS-PS3-4

A microwave oven takes electrical energy and transforms it into all of the following EXCEPT

• chemical energy

• light energy

• thermal energy

• mechanical energy

Tags

NGSS.MS-PS4-2