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Electron Unit Review

Total questions: 12

Worksheet time: 6mins

Name
Class
Date
1.

What is the distance between two peaks of a wave?

a)

Wavelength

b)

Frequency

c)

Amplitude

d)

Oscillation

2.

The number of waves that pass a fixed point in 1 second.

a)

Wavelength

b)

Frequency

c)

Amplitude

d)

Oscillation

3.

The height of the wave from midpoint to peak.

a)

Wavelength

b)

Frequency

c)

Amplitude

d)

Oscillation

4.

The human eye is most sensitive to light that has a frequency of 5.41 x 1014 Hz. What is the wavelength of this light?

a)

5.54 x 10-6 m

b)

5.54 x 10-7 m

c)

5.54 x 10-7 pm

d)

5.54 x 10-7 Hz

5.

The most intense light that is emitted by excited tin atoms has a wavelength of 284.0 nm. What is the frequency of this light? (1m = 109nm)

a)

1.056 x 10-15 Hz

b)

9.466 x 10-16 Hz

c)

1.056 x 106 Hz

d)

1.056 x 1015 Hz

6.

As wavelength increases, energy _________?

a)

Increases

b)

Decreases

c)

Stays the same

7.

As frequency increases, energy __________?

a)

Increases

b)

Decreases

c)

Stays the same

8.

What is the energy of a photon with the frequency of 6.98 x 1014 Hz?

a)

4.62 x 10-19 J ' s

b)

4.62 x 1019 J

c)

1.053 x 1048 J

d)

4.62 x 10-19 J

9.

Ultraviolet radiation has a frequency of 6.8 x 1015 Hz. Calculate the energy of the photon.

a)

4.51 x 10-18 J

b)

4.51 x 1018 J

c)

4.51 x 1018 J ' s

d)

1.026 x 1049 J

10.

The flame test is performed on a Barium compound which imparts a green color to the flame due to an emission line at 493 nm. What is the energy of one photon? (1m=109nm)

a)

4.03 x 1019 J

b)

4.03 x 10-19 J

c)

4.03 x 10-19 J ' s

d)

3.26 x 10-31 J

11.
EM waves________________travel through space.
a)
Never
b)
Cannot
c)
Can
d)
Wish they could
12.
EM waves _______ travel the same speed in a vacuum. 
a)
never
b)
sometimes
c)
always
d)
can