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Quantum Physics

Total questions: 105

Worksheet time: 2hrs 36mins

Name
Class
Date
1.
The photoelectric effect helps us to understand
a)
the particle nature of light.
b)
diffraction pattern produced as light passes through a single slit.
c)
the wave behavior of light.
d)
spectroscopes.
2.
The photoelectric experiment is where
a)
two atoms are forced to collide.
b)
you look through diffraction glasses to see the emission spectrum of light.
c)
light is shined on a piece of metal and electrons are ejected.
d)
two atoms are split.
3.

Units of light emitted by a blackbody were originally called _____.

a)

resonators

b)

amperes

c)

bolts

d)

quanta

4.

Which is the true statements regarding absorption spectra?

a)

The wavelengths (and also the frequencies) of the spectrum are characteristic of the element emitting the light.

b)

The wavelength of the spectrum are the same for all elements.

c)

Absorption spectra form bright lines, representing small segments of the spectrum.

5.
This image is an illustration of
a)
photoelectric effect
b)
Dalton's atomic theory
c)
Bohr model
d)
Quantum mechanical model
6.

Light is shining on a metal, but no photoelectrons are released, which of the following should you do to get electrons?

a)

Use a higher intensity light, but do not adjust the wavelength.

b)

Use a lower intensity light, but do not adjust the wavelength.

c)

Use light of a longer wavelength (lower frequency)

d)

Use light of a shorter wavelength (higher frequency)

7.

Light has a dual nature, therefore it behaves like ____.

a)

A particle

b)

A wave

c)

Both a particle and a wave

8.

Light is shining on a metal, but you want to increase the number of electrons you are producing. Which of the following should you do?

a)

Use a higher intensity light, but do not adjust the wavelength.

b)

Use a lower intensity light, but do not adjust the wavelength.

c)

Use light of a longer wavelength (lower frequency)

d)

Use light of a shorter wavelength (higher frequency)

9.

A photon with a higher frequency also has a higher ______.

a)

intensity

b)

energy

c)

amplitude

d)

period

10.

When high enough frequency of light strikes the surface of a metal, this occurs.

a)

blackbody radiation

b)

energy is created

c)

refraction of light

d)

the photoelectric effect

11.

Which of the following best describes the energy states available to electrons?

a)

Electron's energy states are quantized, meaning they can only be in certain specific amounts.

b)

Electron's energy states are continuous, meaning they can be in any amount they would like.

c)

Electron's energy states are undefinable, meaning we cannot determine their energy.

12.

When photons have the same energy, which other things are the same? Mark 2 correct answers.

a)

The photon's energy.

b)

The photon's wavelength.

c)

The photon's frequency.

d)

The photon's momentum

13.

A beam of electrons has a dual nature, therefore it behaves like ____.

a)

A particle

b)

A wave

c)

Both a particle and a wave

14.

A blackbody emitting __________ light is hottest.

a)

red

b)

yellow

c)

blue

15.

A blackbody emitting __________ light is coolest.

a)

red

b)

yellow

c)

blue

16.

Energy levels available to electrons are ____.

a)

whole number integers - 1, 2, 3, and so on.

b)

half - integer values - 1.5, 2.5, 3.5, and so on.

c)

continuous, they can be any integer value.

17.

Solar cells are examples of the application of which of the following?

a)

blackbody radiation curves.

b)

photoelectric effect.

c)

gyroscopic precession

d)

thermal equilibrium

18.

High intensity light has ______________ photons, while low intensity light has _________ photons.

a)

less / more

b)

more / less

c)

faster / slower

d)

slower / faster

e)

two of the above are correct.

19.

A discreet bundle of electromagnetic energy that is carried in quantized amounts is a(n) _____________.

a)

photon

b)

amplifier

c)

radiator

d)

latent particle

20.

The photoelectrons emitted from the photoelectric effect will have higher velocity if you increase the ____________ of the incoming light.

a)

frequency

b)

intensity

21.

More electrons will be emitted from a metal with the photoelectric effect if the light has a higher __________.

a)

frequency

b)

intensity

22.

How will you prepare for this exam?

a)

Play or study the printed Quizizz

b)

Practice with the Quizlet.

c)

Re-read my worksheets and notes.

d)

Ignore all study materials and sleep with a physics textbook under your pillow.

e)

Watch the discovery channel.

23.
created an equation to treat the electron as a wave
a)
Planck
b)
Heisenberg
c)
de Broglie
d)
Schrodinger
24.

Wave -particle duality is supported by...

a)

electrons behaving as particles with ordinary matter

b)

electrons behaving as waves when travelling through space

c)

the photo electric effect

d)

all of the above

25.

Planck's constant can be found ...

a)

energy of a particle x speed of light / wavelength

b)

energy of a particle x speed of light / frequency of light

c)

energy of a particle x wavelength / speed of light

d)

slope of the cut-off voltage vs frequency graph

26.

10 MeV is equilavent to

a)

1.6 x 10^-19 J

b)

1.6 x 10^-14 J

c)

1.6 x 10^-13 J

d)

1.6 x 10^-12 J

27.

Einsteins' Photoelectric equation can be expressed as

hf = Ek + B where

a)

hf = the energy of the electron

b)

B = the energy of the electron

c)

Ek = work function

d)

none of the above

28.

the minimum frequency for which the photoelectric effect can occur is called the

a)

absolute frequency

b)

cut off frequency

c)

Lyman frequency

d)

threshold frequency

29.

De Broglie equation

a)

relates the momentum of a mass to its wavelength

b)

relates the energy of a mass to its wavelength

c)

relates the frequency of a mass to its wavelength

d)

relates the work function of a mass to its wavelength

30.

All electromagnetic waves...

a)

travel at the speed of light

b)

can be reflected

c)

can exhibit interference

d)

all of the above

31.

When an electron losses energy it ...

a)

transitions from a lower energy level to a higher energy and emits a photon of light

b)

transitions from a higher energy level to a lower energy and emits a photon of light

c)

transitions from a higher energy level to a lower energy and absorbs a photon of light

d)

transitions from a lower energy level to a higher energy and absorbs a photon of light

32.

The energy of an emitted photon can be calculated from ...

a)

Plancks constant x frequency of the photon

b)

h x c / wavelength of the light emitted

c)

the difference in the energy levels

d)

all of the above

33.

Who is responsible for the quantization of energy?

a)

Planck

b)

Einstein

c)

Compton

d)

de Broglie

e)

Heisenberg

34.

Who is responsible for the photoelectric effect?

a)

Planck

b)

Einstein

c)

Compton

d)

de Broglie

e)

Heisenberg

35.

Who is responsible for the wave nature of matter?

a)

Planck

b)

Einstein

c)

Compton

d)

de Broglie

e)

Heisenberg

36.

Who is responsible for the Compton effect?

a)

Planck

b)

Einstein

c)

Compton

d)

de Broglie

e)

Heisenberg

37.

Who is responsible for the uncertainty principle?

a)

Planck

b)

Einstein

c)

Compton

d)

de Broglie

e)

Heisenberg

38.

Who is known as the Father of Quantum Mechanics?

a)

Planck

b)

Einstein

c)

Compton

d)

de Broglie

e)

Heisenberg

39.

Which scientist is from America?

a)

Planck

b)

Einstein

c)

Compton

d)

de Broglie

e)

Heisenberg

40.

The amount of energy an object is allowed to have is...

a)

continuous at the macro level and quantized at the micro level

b)

continuous at both the macro and micro levels

c)

quantized at both the macro and micro levels

d)

quantized at the macro level and continuous at the micro level

41.

Energy at the atomic level (microscopic) can only exist in specific amounts. This is the idea behind...

a)

Quantization of Energy

b)

Photoelectric Effect

c)

Compton Effect

d)

deBroglie Waves

e)

Uncertainty Principle

42.

Which quantum principle describes how solar cells work?

a)

Quantization of Energy

b)

Photoelectric Effect

c)

Compton Effect

d)

deBroglie Waves

e)

Uncertainty Principle

43.

What did Einstein win his Nobel Prize for?

a)

E = mc2

b)

Special Relativity

c)

General Relativity

d)

Photoelectric Effect

44.

Why do we see colors when we look at neon signs?

a)

Electrons are jumping from an excited state to a normal state and giving off energy

b)

Electrons are jumping from a normal state to an excited state and absorbing energy

c)

Electrons are jumping from an excited state to a normal state and absorbing energy

d)

Electrons are jumping from a normal state to an excited state and giving off energy

45.
Which of the following relationships best describes the mass-energy conversion that accompanies many nuclear processes?
a)
F = ma
b)
E = mc2
c)
K = 1/2 mv2
d)
E = hf
46.

In a wave, the distance between two crests is called

a)

amplitude

b)

wavelength

c)

frequency

47.

The wave's height from the origin to the crest is called ____.

a)

amplitude

b)

wavelength

c)

frequency

48.

The number of wave cycles to pass a given point per unit of time is called the __________.

a)

amplitude

b)

wavelength

c)

frequency

49.

The SI unit of frequency is the __________.

a)

meter

b)

second

c)

hertz

d)

meter per second

50.

In the speed of light equation, c stands for

a)

frequency

b)

wavelength

c)

the speed of light

d)

Carbon

51.

The Heisenberg Uncertainty Principle said that one cannot know

a)

the speed of light in a vacuum.

b)

the number of energy levels in a very large atom.

c)

both the wavelength and frequency of a photon at the same time.

d)

both the velocity and the position of a particle at the same time.

52.
According to classical mechanics, which law(s)  apply or applies to the behavior of macroscopic particles?
a)
Newton's three laws
b)
the differential wave equation
c)

Dalton's law of multiple proportions

d)
Kepler's Law
53.
Schrodinger's equation described the
a)
procedure for splitting an atom
b)
complement of the wave function
c)
behavior of "matter" waves
d)
motion of light
54.
The probability density is the
a)
square root of the wave function
b)
absolute value of the wave function
c)
inverse of the wave function
d)
absolute square of the wave function
55.
Schrodinger's cat experiment tested
a)
the probability of quantum tunneling
b)
Bohr's atomic model
c)
whether a quantum system could exist in multiple states
d)
radioactive decay in Plutonium
56.
Which physicist proposed the uncertainty principle in 1927?
a)
Niels Bohr
b)
Albert Einstein
c)
Arnold Schrodinger
d)
Werner Heisenberg
57.

Quantum physics describes:

a)

Nature at the smallest scales of energy levels of atoms and macroatomic particles.

b)

Nature at the biggest scales of energy levels of atoms and subatomic particles.

c)

Nature at the smallest scales of saiyajin levels of atoms and subatomic particles.

d)

Nature at the smallest scales of energy levels of atoms and subatomic particles.

58.
Based on the picture, choose the best description of how wavelength and frequency are related
a)
As wavelength increases, frequency increases
b)
As frequency increases, wavelength remains the same
c)
As frequency increases, wavelength decreases
d)
frequency and wavelength mean the same thing
59.

Qubits can:

a)

Store more memory than bits

b)

Store less memory than bits

60.

Which equation is used to calculate the wavelength associated with matter?

a)

c = λν

b)

λ = c/ν

c)

λ = h / mv

d)

λ = ch / E

61.

What do the different parts of the de Broglie equation (λ = h / mv) equal?

a)

h = Planck's constant, m = meters, v = frequency

b)

h = Planck's constant, m = meters, v = velocity

c)

h = Planck's constant, m = mass, v = frequency

d)

h = Planck's constant, m = mass, v = velocity

62.

How did the Heisenberg Uncertainty Principle affect the quantum mechanical model?

a)

You can't know the speed and position of the electron at the same time.

b)

You can know the speed and position of the electron at the same time.

c)

You can't know the mass and charge of an electron at the same time.

d)

You can't know the frequency and wavelength at the same time.

63.

What is the purpose of the Schrödinger's finding?

a)

We can never know exactly where an electron exists.

b)

He defined areas around the nucleus called orbitals where the electron is likely to be found.

c)

We can measure the speed of an electron using different energies of light.

64.

What does it mean to be "quantized"?

a)

The electron's mass is very small.

b)

The electron is actually a wave.

c)

The position & speed of the electron cannot be known at the same time.

d)

The electron is limited to certain positions in the atom because of specific, fixed energy levels.

65.
What is the lowest point on a wave?
a)
amplitude
b)
peak
c)
trough
d)
wavelength
66.
High frequency waves have _________ wavelengths.
a)
varying
b)
long
c)
the same
d)
short
67.
Which wave has a greater frequency?
a)
A
b)
B
68.
Which wave in the diagram has the greatest wavelength?
a)
1
b)
2
c)
3
d)
4
69.
Which wave has a longer wavelength?
a)
wave C
b)
wave D
70.
The unit of frequency is ___.
a)
meters
b)
nanometers (nm)
c)
m/s
d)
Hertz
71.
All waves carry
a)
energy
b)
light 
c)
matter
d)
particles
72.
Which material does sound travel the fastest?
a)
solid 
b)
liquid 
c)
gases
73.
Which vocabulary term is used to identify the distance between points C & G?
a)
Amplitude
b)
Crest
c)
Frequency
d)
Wavelength
74.
Which letter(s) represent the trough of the wave?
a)
A
b)
B & D
c)
D
d)
C & G
75.
Which letter(s) represent the crest of the wave?
a)
A
b)
B & D
c)
B & F
d)
F
76.
The illustration shows a light ray striking an object.
In the illustration, the light ray striking the object is-
a)
absorbed
b)
stopped
c)
reflected
d)
refracted
77.
A student placed a pencil in a cup of water.  The pencil appears broken because light-
a)
always travels in a straight line
b)
bends when it passes through water
c)
makes the water in the glass evaporate
d)
reflects the pencil on the water's surface
78.
What do we call this tool that separates white light into the colors of the Visible Spectrum?
a)
tuning fork
b)
prism
c)
microscope
d)
graduated cylinder
79.
a)
Reflection
b)
Refraction
80.
Light bending as it passes through a rain drop is an example of...
a)
Refraction
b)
Reflection
81.

How does light energy move?

a)

Longitudinal Waves

b)

Wavelengths

c)

Transverse Waves

d)

Ocean Waves

82.

A wave with a large wavelength will have a ______ frequency and _____ energy

a)

high, low

b)

high, high

c)

low, high

d)

low, low

83.

What is the speed of light?

a)

3.0x108 ms

b)

3.0x108 m/s

c)

6.626x10-34 Js

d)

6.626x10-34 J/s

84.

The frequency of violet light is 7.5x1014 Hz. What is its wavelength?

a)

4.0x10-7 m

b)

4.0x107 m

c)

2.25x1023m

d)

2.25x1023 Hz

85.

If short wavelength has more ENERGY than long wavelength, which color Lightsaber is the most dangerous, or powerful?

a)

Red

b)

Orange

c)

Blue

d)

Green

86.
What type of wave behavior is pictured above?
a)
Refraction
b)
Reflection
c)
Absorption
d)
Diffraction
87.
When all wavelengths of white light are reflected, we see what color?
a)
Black
b)
White
c)
Rainbow
d)
maroon
88.
When all wavelengths of white light are absorbed, we see what color?
a)
Black
b)
White
c)
Rainbow
d)
Maroon
89.

Who coined the term Quanta (plural of quantum)

a)

Albert Einstein

b)

Thomas Young

c)

Max Planck

d)

Robert Millikan

90.

The wave function of the particle lies in which region?

a)

x > 0

b)

x < 0

c)

0 < X < L

d)

x > L

91.

The Energy of the particle is proportional to __________

a)

n

b)

n-1

c)

n2

d)

n-2

92.

Heisenberg’s uncertainty principle is

a)

 ΔE⋅Δx≥h4π\Delta E\cdot\Delta x\ge\frac{h}{4\pi}  

b)

 ΔE⋅Δp≥h4π\Delta E\cdot\Delta p\ge\frac{h}{4\pi}  

c)

 Δp⋅Δx≥h4π\Delta p\cdot\Delta x\ge\frac{h}{4\pi}  

d)

 Δp⋅Δt≥h4π\Delta p\cdot\Delta t\ge\frac{h}{4\pi}  

93.

Schrodinger Wave equation can be derived from Principles of Quantum Mechanics.

a)

True

b)

False

94.

Which subatomic particle is negatively charged?

a)

proton

b)

neutron

c)

electron

d)

quark

95.

Photoelectrons will be ejected from a material surface if?

a)

The threshold frequency is greater than the photon frequency

b)

The work function is less than the photon energy

c)

The intensity of light is high enough

d)

The wavelength of photon is maximum

96.

A monochromatic light beam with a quantum energy of 9.0 eV is incident upon a photocell. The work function of the photocell is 4.1 eV. What is the maximum kinetic energy of the electron.

a)

4.2 eV

b)

4.4 eV

c)

4.7 eV

d)

4.9 eV

97.

It is the science that studies matter and its motion.

a)

Physics

b)

Chemistry

c)

Biology

d)

Psychology

98.

It is a branch of physics that includes various areas of study based on quantum theory which deals with matter and electromagnetic radiation, and the interactions between them.

a)

Optics

b)

Nuclear Physics

c)

Thermodynamics

d)

Quantum Physics

99.

He is the one who created the principle of gravity.

a)

Isaac Newton (1643-1727)

b)

Galileo Galilei (1564-1642)

c)

Albert Einstein (1879-1955)

d)

James Clerk Maxwell (1831-1871)

100.

He is the one who invented the telescope.

a)

Isaac Newton (1643-1727)

b)

Galileo Galilei (1564-1642)

c)

Albert Einstein (1879-1955)

d)

James Clerk Maxwell (1831-1871)

101.

He is a famous revolutionary scientist who discovered relativity, quantum mechanics and gravitation.

a)

Isaac Newton (1643-1727)

b)

Galileo Galilei (1564-1642)

c)

Albert Einstein (1879-1955)

d)

James Clerk Maxwell (1831-1871)

102.

He is the one who discovered the theory of electromagnetism.

a)

Isaac Newton (1643-1727)

b)

Galileo Galilei (1564-1642)

c)

Albert Einstein (1879-1955)

d)

James Clerk Maxwell (1831-1871)

103.

She is the first ever female scientist to win a Nobel Prize for discovering radioactivity.

a)

Paul Dirac (1902-1984)

b)

Richard Feynman (1918-1988)

c)

Marie Curie (1867-1934)

d)

Michael Faraday (1791-1867)

104.

He discovered the electromagnetic induction and the laws of electrolysis.

a)

Paul Dirac (1902-1984)

b)

Richard Feynman (1918-1988)

c)

Marie Curie (1867-1934)

d)

Michael Faraday (1791-1867)

105.

It is a branch of physics that deals with the behavior of objects and systems in response to various forces.

a)

Classical Physics

b)

Mechanics

c)

Thermodynamics

d)

Physics

e)

Relativity

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