Light and Shadows Quiz

What is a shadow caused by?

• The presence of light

• The absence of light

• Light being blocked by an object

• Light reflecting off an object

Why do we need light?

• To create shadows

• To see things

• To make materials reflective

• To change the size of shadows

Which materials are reflective?

• Only opaque materials

• Only smooth and shiny materials

• All materials

• Some materials are reflective and some are not

What controls the amount of light that enters the eyes?

• The retina

• The pupil

• The cornea

• The lens

What kind of surfaces reflect light best?

• Rough, dull, and curved surfaces

• Smooth, shiny, and flat surfaces

• Opaque, translucent, and transparent surfaces

• Colored and textured surfaces

What will you be able to do with materials that are opaque, translucent, and transparent?

• Reflect light

• Organize them based on their properties

• Block out all light

• Change their reflective properties

What is the definition of "dark" according to the glossary?

• A form of energy that travels in a wave from a source.

• An object that makes its own light.

• Dark is the absence of light.

• Waves of light are called light rays.

What does "light" refer to in the glossary?

• To bounce off.

• A layer at the back of the eye.

• A form of energy that travels in a wave from a source.

• Describes objects that do not let any light pass through them.

According to the glossary, what is a "light source"?

• A word to describe something which reflects light well.

• An object that makes its own light.

• The process where light hits the surface of an object and bounces back into our eyes.

• A layer at the back of the eye.

What is the meaning of "ray" in the context of light?

• To bounce off.

• Waves of light are called light rays.

• A word to describe something which reflects light well.

• Describes objects that do not let any light pass through them.