Light and Color

How does brightness relate to distance from a light source?

• The brightness remains constant regardless of distance.

• The closer you are to the source of light, the brighter the light appears.

• Brightness decreases linearly with distance.

• Brightness is only affected by the color of the light source.

What is a material that allows light to pass through clearly?

• Opaque

• Translucent

• Transparent

• Reflective

What is refraction?

• The bending of light as it passes from one medium to another.

• The reflection of light off a surface.

• The absorption of light by a material.

• The scattering of light in different directions.

What is the difference between a shadow and a reflection?

• A shadow is created when an object blocks light, while a reflection is the bouncing back of light from a surface.

• A shadow is a dark area caused by an object blocking light, while a reflection is an image seen in a mirror.

• A shadow is a type of reflection that occurs only at night, while a reflection can occur at any time of day.

• A shadow is always darker than a reflection, which can vary in brightness.

What is the term for the colors of light that can be seen in a rainbow?

• The colors of the visible spectrum.

• The colors of the infrared spectrum.

• The colors of the ultraviolet spectrum.

• The colors of the thermal spectrum.

What is the term for materials that allow some light to pass through but not clearly?

• Opaque

• Transparent

• Translucent

• Reflective

What is reflection in terms of light?

• When light passes through a medium.

• When light is absorbed by a surface.

• When light bounces off a surface.

• When light is scattered in different directions.

What is the role of a lens in optics?

• To magnify objects

• To focus or disperse light rays.

• To change the color of light

• To reflect light rays

What is the primary source of natural light on Earth?

• The Moon.

• Artificial lights.

• The Sun.

• Stars.

What happens when light passes through a prism?

• White light is made of different colors.

• Light is absorbed by the prism.

• Light is reflected back.

• Light changes speed but not direction.