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Light

Total questions: 18

Worksheet time: 5hrs 30mins

Name
Class
Date
1.

Light does not need a substance to travel through

a)

True

b)

False

2.
Which of these describes how light travels through an empty space?
a)
It travels straight but may change direction to avoid objects.
b)
It changes direction often even if there are no objects. 
c)
It comes to a stop after it travels a certain distance. 
d)
It travels in a straight line without stopping. 
3.

A particle of visible light or other electromagnetic radiation is called a....

a)

Packet

b)

Photon

c)

Hubble Unit

d)

AU

4.

A wave consisting of alternating electric and magnetic energy is called...

a)

Gravitational Wave

b)

Tidal Wave

c)

Insular Wave

d)

Electromagnetic Wave

5.

What is the distance from crest to crest or trough to trough of any given wave?

a)

Wavelength

b)

Crest Length

c)

Photon

d)

Trough Length

6.

The electromagnetic waves with the longest wavelengths and lowest frequencies are

a)

radio waves.

b)

infrared rays.

c)

X-rays.

d)

gammy rays.

7.
Which of the following types of radiation has the shortest wavelength and the highest frequency?
a)
Radio Waves
b)
Infrared
c)
Visible
d)
X-Rays
8.

Which wavelength of visible light has the lowest energy?

a)

Red

b)

Yellow

c)

Orange

d)

Blue

9.

Light is considered a...

a)

particle

b)

electron

c)

wave

d)

Both wave and particle

10.

When the light source and the observer move away from each other, which color shift occurs?

a)

Blueshift

b)

Redshift

11.

When the light source and observer are moving closer together, which color shift occurs?

a)

Blueshift

b)

Redshift

12.

Light we see via prism is a(n)...

a)

Absorbance Spectra

b)

Emission Spectra

c)

Continuous Spectra

13.

Light emitted from a source, displayed as colored lines

a)

Absorbance Spectra

b)

Emission Spectra

c)

Continuous Spectra

14.

Spectra of light with black lines

a)

Absorbance Spectra

b)

Emission Spectra

c)

Continuous Spectra

15.

The hotter an object is, the brighter it is.

a)

Newton's Law

b)

Wein's Law

c)

Kirchhoff's Law

d)

Stefan's Law

16.

Cold gases absorb specific wavelengths of light. When they are hot enough to emit light, they emit the wavelengths they absorbed when cold.

a)

Newton's Law

b)

Wein's Law

c)

Kirchhoff's Law

d)

Stefan's Law

17.

As an object increases in temperature, the average wavelength of the light it emits gets shorter.

a)

Newton's Law

b)

Wein's Law

c)

Kirchhoff's Law

d)

Stefan's Law

18.

Higher energy light has a higher frequency and shorter wavelengths.

a)

True

b)

False