ch19 light

what mirror has a focal point

• concave

• covex

• plane

• focal

For light to be seen, an object must __________ its own light or ___________ light

• produce

• reflect

• diffuse

• absorb

Tags

NGSS.MS-PS4-2

Opaque material absorbs all of the light that strikes it.

• true

• false

• it depends

Tags

NGSS.MS-PS4-2

Why does an apple look red?

• The color red is reflected but all the other colors are absorbed.

• The color red is absorbed and all the other colors are reflected.

• The color red is absorbed and the other colors are refracted (bent).

• The color red is refracted (bent) and all the other colors are absorbed.

Tags

NGSS.MS-PS4-2

when all primary light colors combine they make ______

• black

• white

• orange

• brown

what object lets almost all light through

• opaque

• translucent

• transparent

Tags

NGSS.MS-PS4-2

when all pigment colors combine they make ______

• white

• black

• orange

• grey

what object lets some light through

• transparent

• translucent

• opaque

Tags

NGSS.MS-PS4-2

what mirror reflects the surface

that curves outward and causes

light rays to spread apart,

• covex

• concave

• plane

• focal

would you be able to read a book in a dark room

• yes

• no