Convex and concave

What are lenses

• concave

• Where the lens is thin

• Where the lens is thick

• A curved piece of glass that causes light to refract or bend

What is the difference between concave and convex lenses

• Concave center is thinner than the edges, and convex center is thicker than the edges

• Concave center is thicker than the edges, and convex is thinner than the edges

• One is made of glass the other is not

• Convex refracts light rays the other dont

What is a convex lens

• A lens where the center of the lens cave in

• A peephole

• A lens where the center bulges out

• A piece of glass

What is a concave lens

• binoculars

• cameras

• microscope

• When the center of the lens cave in

Concave lens are also called divergent lens

• True

• False

Convex lens are known as

• Convergent lens

• Divergent lens

• lens

• glasses

What is the color spectrum in order

• Blue, indigo, yellow, red, green, violet, orange

• Yellow, blue, yellow, indigo, red, green, orange, violet

• Orange, blue, yellow,

  indigo, green, red, violet

• Red, orange, yellow,

  green, blue, indigo, violet

Define prism

• Single wavelength

• A refracting surface that separates white light into a spectrum of colors

• Visible light

• colors

Define spectrum

• frequency

• A wave

• A refracting surface

• A line with a single wavelength or frequency of light

Tags

NGSS.MS-PS4-2

Convex lenses appear smaller and farther

• True

• False