4.3 Light

What type of energy is light classified as?

• Kinetic energy

• Potential energy

• Electromagnetic radiation

• Thermal energy

How does light travel?

• As a sound wave

• As an electromagnetic wave

• As a mechanical wave

• As a gravitational wave

Through what medium do radiation and light from the Sun travel to reach Earth?

• Through water

• Through air

• Through the vacuum of empty space

• Through solid objects

When light hits a surface, which of the following is NOT a possible outcome?

• Transmitted through it

• Reflected off it

• Absorbed into it

• Dissolved into it

What are the three possible interactions of light with a surface?

• Transmitted, Reflected, Absorbed

• Transmitted, Refracted, Dissolved

• Reflected, Refracted, Dissolved

• Absorbed, Refracted, Dissolved

What does the diagram in the image represent?

• Light traveling as a sound wave

• Light traveling as an electromagnetic wave

• Light traveling as a water wave

• Light traveling as a mechanical wave

What is the term for a material through which almost all light is transmitted, allowing a clear image to be seen through it?

• Translucent

• Transparent

• Opaque

• Reflective

Which of the following is an example of a translucent material?

• Clear glass

• Shallow water

• Tissue paper

• A brick

What happens to light when it hits an opaque material?

• Almost all light is transmitted through the material.

• Some light is reflected, and the rest is scattered.

• Light is either reflected or absorbed, and no light is transmitted.

• Light passes through the material, creating a clear image.

Which of the following is NOT an example of an opaque material?

• A brick

• A piece of wood

• Frosted glass

• A desk