BrainPop- Light (4th grade)

BrainPop- Light (4th grade)

By Shayla Roberson

Multiple Choice

Which of the following is an artificial light source?

Multiple Choice

How does a light bulb work?

• A wick inside the bulb is burned

• An electric current is passed through a filament.

• White light is passed through a prism

• Ambient light is reflected by a small mirror.

Multiple Choice

What can you infer about the environment the anglerfish lives in?

• It must be extremely bright.

• It must be extremely dark

• It must be filled with other fish.

• It must be empty of other fish.

Multiple Choice

What device produces light by running an electric current through a gas?

• An incandescent light bulb

• A flashlight

• A neon sign

• A prism

Multiple Choice

What could you use to split white light into its component colors?

• A flashlight

• A capacitor

• A light bulb

• A prism

Multiple Choice

Why does refraction occur?

• Light travels through different materials at different speeds

• Different colors of light travel at different speeds.

• Different materials physically twist light around.

• Light from different sources travels at different rates.

Multiple Choice

Only a minute portion of the electromagnetic spectrum can be seen with the human eye. In this context, what does "minute" mean?

• Colorful

• Large

• 60 Seconds

• Small

Multiple Choice

When you look at your teacher's face, how can you see it?

• Light reflects off of her face.

• Her face emanates light.

• Light refracts through her face

• Her face emits electromagnetic radiation.

Multiple Choice

Light can behave as both a ______ and a _______.

• Ray; beam

• Wave; particle

• Natural source; unnatural source

• Refraction; reflection

Multiple Choice

Why does the light we see from stars take thousands of years to reach us?

• Because the light is slowed down by gases in outer space

• Because the light is reflected off of other stars

• Because the stars are very far away

• Because light travels very slowly