Light Unit Quiz

How does light travel?

• up and down

• in a broken line

• in a straight line

• downward

Which best explains why objects can be seen?

• objects reflect light

• light shines on objects

• objects are made of matter

• light refracts off objects

Which of the following BEST describes what Newton discovered about prisms?

• They absorb white light.

• They display infrared light inside.

• They convert light energy into waves.

• They split light into the visible spectrum.

Which of the following is a true statement about light?

• It is made of only one color.

• It is made of many colors.

• It cannot travel through a vacuum.

• It cannot travel through solids.

Sam wants to conduct an experiment in which he turns white light into a colored light. Which of these tools should he use?

• a mirror

• a magnifying glass

• an anemometer

• a prism

The closer the light source is _________ the intensity of brightness.

• lesser

• greater

• amount

• curve

Which of the following is not a light source?

• the sun

• a firefly

• a light switch

• a candle

When the lights are on in the classroom, Sophie can see her desk. When the lights are off in the class, Sophie can still see her desk but not as good. Which is the best explanation of this?

• Sophie can see her desk because it reflects light. When the lights are on, the desk has more light to reflect. When the lights are off the desk has less light to reflect.

• Sophie can see her desk because the light is absorbed. When the lights are off the absorbed light allows the desk to be seen.

• Sophie can see her desk because light refracts when it hits the desk.

Each color in the visible spectrum represents a different amount of _____.

• light

• wavelength

• color

• energy

When light is ________, it bounces back from a surface.

• reflected

• refracted

• absorbed

• turned