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PHY 172 Exam 1 Review Game

Total questions: 29

Worksheet time: 1hrs 27mins

Name
Class
Date
1.

Which properties of waves can we perceive with sound and light?

a)

Frequency

b)

Wavelength

c)

Amplitude

2.

What is the velocity of a wave dependent on?

a)

Frequency

b)

Force of Tension

c)

Mass per Unit Length

d)

Wavelength

3.

Which of the following changes if you change the frequency of a wave?

a)

Velocity

b)

Wavelength

c)

Both

4.

What happens when we pluck a guitar string, or strike a piano string?

a)

We hear the first harmonic.

b)

We hear the middle harmonic.

c)

We hear the highest harmonic.

d)

All harmonics are present at the same time.

5.

What gives an instrument its unique tone (frequency)?

a)

Velocity

b)

Wavelength

c)

Relative Strength of Different Harmonics

d)

Size of Instrument

6.

What is a rare occasion where light doesn't travel in a straight line?

a)

When it undergoes refraction

b)

Light not passing through an object of large mass such as the sun

c)

When the light reflects off a surface

d)

Interacting with any large object compared to the wavelength of the light

7.

What is true about the speed of light in a vacuum?

a)

It is always less than the speed of other materials

b)

It is always greater than the speed of other materials

c)

It changes from time to time

8.

What is true about the frequency of a wave?

a)

It changes as it travels from one medium to another

b)

It determines the velocity

c)

It is affected by the medium

d)

It is fixed when the wave is created

9.

What happens when a wave travels from a lower index of refraction to a higher index of refraction?

a)

It bends towards the normal

b)

It bends away from the normal

c)

The angle of refraction is higher than the angle of reflection

d)

The angle of refraction is lower than the angle of reflection

10.

What happens if we keep increasing the angle of incidence?

a)

It will randomly affect the angle of refraction

b)

More light will leave the water

c)

We will get to the critical angle when the angle of refraction is 90 degrees

d)

We will have more external reflection

11.

How can you see multiple colors when shining white light through a prism?

a)

Because it is shiny

b)

Because the index of refraction of materials is dependent on the wavelength

c)

Because the light reacts with the prism

d)

Because of light's intellectual powers

12.

Which of the following results in destructive interference?

a)

Crossing two crests

b)

Crossing two troughs

c)

Crossing a crest and a trough

d)

All of the above

13.

How do we know what different stars are made of?

a)

By connecting a spectrometer to a telescope

b)

By observing the line spectra present

c)

By comparing the line spectra present with line spectra of atoms in the lab

d)

All of the above

14.

What are atomic fingerprints?

a)

DNA locations

b)

Bond peaks

c)

IR Fragments

d)

Distinct Patterns of Light produced by an element when heated

15.

A rope of length L is clamped at both ends. Which one of the following is not a possible wavelength for standing waves on this rope?

a)

4L

b)

L/2

c)

2L

d)

2L/3

e)

L

16.

For a standing wave on a string with two fixed ends, the first node greater than x=0 occurs at x=? The first antinode occurs at x=?

a)

Node at x=λx=\lambda  , Antinode at x=λ2x=\frac{\lambda}{2}  

b)

Node at x=λ2x=\frac{\lambda}{2} , Antinode at x=λx=\lambda  

c)

Node at x=λ2x=\frac{\lambda}{2} , Antinode at x=λ4x=\frac{\lambda}{4}  

d)

Node at x=λ4x=\frac{\lambda}{4} , Antinode at x=λ2x=\frac{\lambda}{2}  

17.

The source of all electromagnetic waves is

a)

Magnetic Fields

b)

Vibrating Charges

c)

Heat

d)

Electric Fields

e)

Vibrating Atoms

18.

The main difference between a radio wave and a light wave is its

a)

Frequency

b)

Speed

c)

Wavelength

d)

All of These

e)

Two of these

19.

When light reflects from a surface, there is a change in its

a)

Wavelength

b)

Speed

c)

Frequency

d)

Polarization

e)

None of These

20.

When light moves from air into water, there is a change in its

a)

Wavelength

b)

Frequency

c)

Velocity

d)

Wavelength and Velocity

e)

Wavelength, Frequency, and Velocity

21.

A diver shines light up to the surface of a smooth pond at a 10 degree angle to the normal. Some light passes into the air above, and the part that reflects back into the water makes an angle to the normal of

a)

More than 10 degrees

b)

10 degrees

c)

Less than 10 degrees

22.

A fish swims below the surface of the water at P. An observer above the water sees the fish at

a)

A greater depth than it really is

b)

The same depth

c)

A smaller depth than it really is

23.

If you increase the slit width in a single slit system, how does the width of the central maximum change?

a)

It gets larger

b)

It gets smaller

c)

It doesn't change

24.

In a double slit experiment, constructive interference will occur if the path length difference from the slits to the screen can be

a)

λ\lambda  

b)

3λ2\frac{3\lambda}{2}  

c)

3λ3\lambda  

d)

λ2\frac{\lambda}{2}  

25.

Laser Light is

a)

Monochromatic and Coherent

b)

Coherent but not Monochromatic

c)

Monochromatic but not Coherent

d)

Neither Monochromatic nor Coherent

26.

The spacing between double-slit interference fringes is increased if the slits are

a)

Narrower

b)

Closer together

c)

Farther apart

d)

Wider

e)

None of these

27.

The reason that we see a rainbow is due to

a)

Diffraction

b)

Interference

c)

Dispersion

d)

Refraction

28.

The reason that we might see a highway mirage is due to

a)

Diffraction

b)

Interference

c)

Dispersion

d)

Refraction

29.

When light passes through one or more slits, it is possible to have

a)

Just Diffraction

b)

Just interference

c)

Interference and Diffraction

d)

Just Diffraction and Interference and Diffraction

e)

Just Diffraction, Just Interference, and Interference and Diffraction