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Ch 5 - Quiz Ch 5.1 - Light and Quantized Energy

Total questions: 10

Worksheet time: 20mins

Name
Class
Date
1.

A wave of red light travels at:

a)

6.02 x 1023 m/s

b)

5.30 x 109 m/s

c)

8.00 x 103 m/s

d)

3.00 x 108 m/s

2.

The particle model treats light as being comprised of:

a)

photons

b)

electrons

c)

neutrons

d)

electricity

3.

Which of the following do not necessarily describe a wave?

a)

c

b)

frequency ν

c)

wavelength λ

d)

amplitude

4.

λ and ν are:

a)

inversely proportional

b)

directly proportional

c)

they are proportional in 10 different ways

d)

they are proportional in 20 differentways

5.

When we looked at element tubes through glasses with diffraction gratings, we saw spectra from elements as:

a)

continuous spectra just like the sun

b)

dark line spectra

c)

bright line spectra

d)

were not able to show us spectra at all

6.

Green light travels:

a)

faster that red light

b)

slower than red light

c)

faster than x-rays

d)

at the speed of light

7.

What is the wavelength (λ) of electromagnetic radiation with a frequency (ν) of 9.01 x 1015 s-1 ?

a)

3.32 x 10-8 m

b)

6.66 x 10-7 m

c)

4.13 x 10-9 m

d)

1.88 x 1015 m

8.

Scientists think the photoelectric effect is possible evidence that LIGHT acts like particles. These particles are called:

a)

electrons

b)

photons

c)

neutrons

d)

the nuclei of atoms

9.

A ______________ is the minimum amount of energy that can be gained or lost by an atom.

a)

wavelength

b)

frequency

c)

quantum

d)

electron

10.

Which type of wave has the longest wavelength (λ)

a)

AM radio

b)

microwaves

c)

x-rays

d)

TV, FM