Light and Optics Quiz

The illumination of a surface is the ____.

• luminous flux

• illuminance

• diffraction

• polarized

Combining a color of light with its ____ produces white light.

• primary color

• complementary color

• secondary color

• primary pigment

The bending of light as it passes the edge of a barrier is ____.

• diffraction

• opaque

• translucent

• transparent

Tags

NGSS.MS-PS4-2

A measure of the total rate at which light is emitted from a source is the ____.

• luminous flux

• illuminance

• diffraction

• polarized

A material that transmits no incident light is a(n) ____ material.

• opaque

• translucent

• transparent

• polarized

Tags

NGSS.MS-PS4-2

According to the ray model of light, how does light travel?

• In a circular path

• In a zigzag path

• In a straight line

• In a spiral path

What is the symbol for the unit of illuminance?

• cd

• lm

• lx

• W

What is the symbol for the unit of luminous flux?

• cd

• lm

• lx

• W

A body that emits light waves is called what?

• Illuminated

• Luminous

• Reflective

• Transparent

Tags

NGSS.MS-PS4-1

What term describes the rate at which light is given off?

• Luminous flux

• Illuminance

• Luminous intensity

• Reflection