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Do now: Electromagnetic Radiation

Total questions: 12

Worksheet time: 23mins

Name
Class
Date
1.

What is the wavelength of the wave?

a)

3 cm

b)

6 cm

c)

12 cm

d)

18 cm

2.

Which wave has the longest wavelength?

a)
b)
c)
d)
3.

Which wave has the highest frequency? (Assume they all pass by in the same time period.)

a)
b)
c)
d)
4.

A wave has a frequency of 8.0 Hz and a speed of 32 m/s. By using the equation speed = λ*ν, what is the wavelength of the wave?

a)

2.0 meters

b)

3.0 meters

c)

4.0 meters

d)

5.0 meters

5.

Energy and frequency of light are (a)   related. The energy and wavelength of light are ​ ​ (b)   related.

Choose from the below words
directly

not at all

inversely
6.

The frequency of light is 7.14 x 1014 Hz. What is the wavelength?

a)

3.00 x 108 m

b)

4.20 x 10-7 m

c)

2.25 x 1023 m

d)

3.90 x 10-9 m

7.

Red light has a wavelength of 675 x 10-9 m. What is its frequency?

a)

2.03x1011 m

b)

4.44x1014 Hz

c)

4.44x1014 nm

d)

2.03x1011 Hz

8.

Solve this problems using the equation: 
C = λν (c = 3.00 x 108 m/s)
If an AM radio station broadcasts at
9.95 x 105 Hz, what is the wavelength of this radiation?

a)
6.59 x 10-28 m
b)
1.01 x 10-6 m
c)
3.32 x 10-3 m
d)
302 m
9.

What is the frequency of a photon whose energy is 3.4x10-19J? (h= 6.626x 10-34 J*s)

a)

8.8x1026 Hz

b)

5.1x1014 Hz

c)

1.9x10-15 Hz

d)

2.3x10-52 Hz

10.

Calculate the energy of light with a frequency of 5.10 x 1014 Hz. (h= 6.626x 10-34 J*s)

a)

3.38 x 10-19 J

b)

5.88 x 10-7 J

c)

9.62 x 1012 J

d)

1.04 x 10-13 J

11.

A packet "particle" of electromagnetic energy is known as a

a)

neutron

b)

photon

c)

Hertz

d)

proton

12.

Electromagnetic radiation can sometimes behave like _______ and at other times like __________. Choose two.

a)

a wave

b)

a particle

c)

gravity

d)

matter