Unit 3 Practice - Light & Optics - Part 1

Match the following terms related to Telescopes

• eyepiece lens

• found in both refracting and reflecting telescopes

• objective lens

• concave object found in a reflecting telescope

• objective mirror

• collects and focusses light in a refracting telescope

• objective mirror

• collects and focusses light in a reflecting telescope

Tags

NGSS.MS-PS4-2

Match the following

• convex mirror

• glass blocks that separate white light into its individual colours

• iris

• bulges outward

• concave mirror

• controls the size of the pupil

• prism

• path from the retina to the brain

• optic nerve

• curves inward

Tags

NGSS.MS-LS1-8

Mona thinks she is seeing things. She tries to sleep at camp but is convinced she sees a fairy that emits a pink light every once in awhile as it flies. You tell her some living creatures produce a special type of light called ...

• incandescence

• fluorescence

• chemiluminescence

• bioluminescence

Which of the following is not an example of a luminous object?

• the Sun

• the Earth

• a candle

• a flashlight

A good example of an opaque object is ...

• the windshield of a car

• a plastic sandwich bag

• aluminum foil

• a glass window

Tags

NGSS.MS-PS4-2

A good example of a translucent object is ...

• the windshield of a car

• wax paper

• a glass window

• aluminum foil

Tags

NGSS.MS-PS4-2

A good example of a transparent object is ...

• wax paper

• frosted glass

• plain white paper

• plastic wrap

Tags

NGSS.MS-PS4-2

What is a ray diagram?

• a drawing that uses the ray model to illustrate how light behaves

• a straight line that represents the path of a beam of light

• light that is bent as it passes through a translucent object

• an explanation based on observation of how light behaves

Tags

NGSS.MS-PS4-2

NGSS.MS-PS4-1

How would you increase the size of the shadow on the screen?

• move the solid objects closer to the light source

• move the light source away from the solid objects

• move the solid objects closer to the screen

• decrease the size of the solid objects

Which of the following statements is NOT true about the reflected image of an object in a plane mirror?

• The image is the same height as the reflected object.

• The image is the same distance away from the object as the reflected image.

• The image is the same size as the reflected object.

• The image is upside down and the reflected object is right side up.