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Fusion

Total questions: 100

Worksheet time: 1hrs 2mins

Name
Class
Date
1.
What is the number of protons that the element in this image contain?
a)

2

b)

6

c)

12

d)
18
2.

Match the following

a)

proton

1.

positive charge

b)

neutron

2.

no charge

c)

electron

3.

negative charge

3.
Which subatomic particles contribute the most to the mass of an atom?
a)
Protons, Neutrons, Electrons
b)
Protons only
c)
Protons and Electrons
d)
Protons and Neutrons
4.
Where are electrons of an atom found?
a)
Nucleus
b)
Electron Cloud
c)
Some are in the nucleus and some in the electron cloud.
d)
They are moving everywhere.
5.
Do all stars make energy through fusion?
a)
Yes
b)
No
c)
Just our sun
d)
Only large stars
6.
Which atoms combine together during fusion reaction on the sun?
a)
Helium and Hydrogen atoms
b)
Hydrogen atoms
c)
Hydrogen and Lithium atoms
d)
Hydrogen and Carbon atoms
7.
Where does fusion occur naturally?
a)
Underwater
b)
All around us
c)
In the radioactive waste
d)

In the sun

8.
This is an example of...
a)
Fission  reaction
b)
Fusion reaction
c)
Decomposition reaction
d)
Decay
9.
How do nuclear power-plants work?
a)
Fusion
b)
Half-life
c)
Fission
d)
Fusion or fission
10.
The splitting of a nucleus into smaller nuclei is
a)
fusion
b)
fission
c)
half-life
d)
gamma radiation
11.
Takes two small nuclei and combines them into a larger nucleus
a)
fission
b)
fusion
12.
Very high temperature and pressure is required for:
a)
Fission
b)
 Fusion
c)
Radioactive Decay
13.

In Einstein's Equation, the loss of mass is converted into

(a)  

14.

What nuclear process is shown in the picture?

a)

alpha decay

b)

gamma emission

c)

fusion

d)

fission

15.

When two H-1 atoms combine it is now....

a)

H-2

b)

He-2

c)

He-3

d)

H-3

16.

Match the following

a)

H-1

1.

1 p+

b)

H-2

2.

1p+ 1n0

c)

He-3

3.

2p+ 1n0

d)

He-4

4.

2p+ 2n0

e)

H-3

5.

1p+ 2n0

17.

How does the sun produce energy?

a)

nuclear fission of uranium atoms

b)

nuclear fusion of hydrogen atoms

c)

nuclear fission of hydrogen atoms

d)

nuclear fusion of uranium atoms

18.

Most the energy from the sun comes from

a)

light reactions

b)

chemical reactions

c)

gravity

d)

nuclear reactions

19.

When two hydrogen atoms fuse together in the core of the sun a little bit of mass of mass is lost and...

a)

is changed into smaller pieces of matter

b)

is changed into lots of gas

c)

is changed into a huge amount of energy

d)

is changed into dark matter

20.

What atom is this?

a)

Deuterium H-2

b)

Hydrogen H-1

c)

Tritium H-3

d)

Helium He-2

21.

Which of the symbols below label this atom correctly?

a)

H-1

b)

He-1

c)

H-2

d)

H-3

e)

He-3

22.

Which element modeled shows Li-7

a)

b)

c)

d)

23.

Click where the nuclear fusion occurs on the sun.

A
B
C
D
E
24.

Click the TWO reasons that atoms can fuse together in the sun's core.

a)

Incredible Heat

b)

Enormous Pressure

c)

High Electromagnetic Attraction

d)

High Electromagnetic Repulsion

25.
What are the two types of nuclear reactions?
a)
addition and reduction
b)
fusion and fission
c)
reduction and fission
d)
fusion and addition
26.

Fusion changes hydrogen into what?

a)

helium

b)

uranium

c)

U-238

d)

U-235

27.

Which of the following electromagnetic waves travels the fastest?

a)

gamma rays

b)

radio waves

c)

ultraviolet waves

d)

they all travel the same speed

28.

What is the most accurate measured value of the speed of light?

a)

3 x 108 m/s

b)

186,000 miles/s

c)

300,000 km/s

d)

784 miles/hr

29.

Which is a source of light?

a)

Chair

b)

Mirror

c)

Flashlight

d)

ball

30.

Where does light come from?

a)

The fish

b)

The clouds

c)

A coral reef

d)

The sun

31.

Plants depend on the sun’s light energy to ____________.

a)

Make carbon dioxide

b)

Perform photosynthesis (make their own food)

c)

Produce a spectrum

d)

Make water

32.

How is light energy transmitted? Light energy is transmitted as _________.

a)

Cells

b)

Waves

c)

Circles

d)

wires

33.
the smallest particles of matter that still retain the characteristics of that element are called
a)
atoms
b)
nuclei
c)
dust 
d)
molecule
34.
Do all stars make energy through fusion?
a)
Yes
b)
No
c)
Just our sun
d)
Only large stars
35.

Define nuclear fusion.

a)

Nuclear fusion – combining lighter atoms to make heavier ones – is what makes it possible.

b)

Nuclear fusion – splitting lighter atoms to make heavier ones – is what makes it possible.

c)

Nuclear fusion – combining heavier atoms to make lighter ones – is what makes it possible.

d)

Nuclear fusion – splitting heavier atoms to make lighter ones – is what makes it possible.

36.

This process, called nuclear fusion, is the energy source of all __________.

There may be more than one answer for this questions.

a)

planets

b)

suns

c)

stars

d)

plants

37.

When hydrogen is "fused" together on the Sun, what new element is created?

a)

Helium

b)

Carbon Dioxide

c)

Oxygen

d)

Light

38.

Stars have loads of proton - proton chain reactions happening in its core. What charge do protons have?

a)

neutral - no charge

b)

positive

c)

negative

d)

neutrino

39.
particles that are located in the nucleus of an atom and no charge
a)
proton
b)
neutron
c)
electron
d)
dust
40.

Nuclear fusion is the reaction that generates energy in stars.

a)

True

b)

False

41.

Why does nuclear fusion require high pressures and temperatures?

a)

To provide enough energy to split the nucleus.

b)

The two nuclei are both negatively charged and repel each other.

c)

To lower the cost.

d)

To overcome the electrostatic repulsion of the nuclei.

42.

Where does fusion occur?

a)

On the Sun and stars

b)

underwater

c)

all around us

d)

nuclear power plant

43.

When hydrogen is "fused" together on the Sun, what new element is created?

a)

Helium

b)

Carbon Dioxide

c)

Oxygen

d)

Light

44.

Fusion in the ____________ produces Helium and energy.

a)
Chromosphere
b)
Photosphere
c)
Core
d)
Radiative Zone
45.

Where in our Sun is energy produced, and how does the process occur?

a)
Nuclear fusion produces energy in the core of the sun.
b)
Energy is produced in the sun’s corona by nuclear fission.
c)
The sun’s radiative zone produces energy by nuclear fusion.
d)
The sun generates energy by nuclear fusion at the top of convection cells.
46.

What process is primarily responsible for the Sun's energy and light?

a)

Nuclear fission

b)

Nuclear fusion

c)

Chemical reactions

d)

Gravitational contraction

47.

How long does it take for the Sun's light to reach Earth?

a)

8 minutes

b)

8 seconds

c)

24 hours

d)

1 year

48.
What fuel do stars use? 
a)
Oxygen
b)
Hydrogen
c)
Carbon
d)
Iron
49.

What is responsible for 85% of the energy from the sun?

a)

the break down of heavy elements by fission

b)

the burning of plasma

c)

hydrogen fusing into helium in the sun's core

d)

the burning of electrons from the outsides of atoms

50.

What is the SECOND most common element in a star? 

a)

Hydrogen

b)

Helium

c)

Carbon

d)

Iron

51.

What is the code for this atom?

a)

H-1

b)

H-2

c)

H-3

d)

He-1

52.

What is the code for this atom?

a)

H-5

b)

He-5

c)

Li-3

d)

He-4

53.

What is the code for this atom?

a)

Li-5

b)

He-7

c)

H-6

d)

B-7

54.

What is the code for this atom?

a)

H-4

b)

Li-4

c)

He-5

d)

He-4

55.

What is the code for this atom?

a)

He-6

b)

Li-7

c)

He-6

d)

Li-6

56.
In nuclear fusion, smaller atoms are forced together to create larger atoms. Does this process release, absorb or maintain energy?
a)
Absorb energy
b)
Maintain energy
c)
Release energy
57.
the smallest particles of matter that still retain the characteristics of that element are called
a)
atoms
b)
nuclei
c)
dust 
d)
molecule
58.

Define nuclear fusion.

a)

Nuclear fusion – combining lighter atoms to make heavier ones – is what makes it possible.

b)

Nuclear fusion – splitting lighter atoms to make heavier ones – is what makes it possible.

c)

Nuclear fusion – combining heavier atoms to make lighter ones – is what makes it possible.

d)

Nuclear fusion – splitting heavier atoms to make lighter ones – is what makes it possible.

59.
a dense positively charged sub atomic particle is called a 
a)
proton
b)
neutron
c)
electron
d)
plasma
60.
particles that are located in the nucleus of an atom and no charge
a)
proton
b)
neutron
c)
electron
d)
dust
61.

What element is most the sun made of?

a)

Hydrogen

b)

Helium

c)

Carbon

d)

Iron

62.

Which wavelength can humans see?

a)

Microwaves

b)

Radio waves

c)

Visible light

d)

Gamma rays

63.
Which part of the electromagnetic spectrum has high enough energy to cause damage to eyes and skin, and sometimes even cancer? 
a)
infrared light
b)
visible light
c)
ultraviolet light
d)
microwaves
64.
Which of the following electromagnetic waves is given off as heat? 
a)
ultraviolet light
b)
x-rays
c)
gamma rays
d)
infrared rays
65.
Cell phones and televisions use this type of EM wave.  It has the longest wavelength with the lowest frequency.
a)
radio wave
b)
tv wave
c)
Gamma wave
d)
ultra violet
66.
If the wavelength of an electromagnetic wave is longer, what is true about the energy? 
a)
Energy is higher.
b)
Energy is lower. 
c)
Energy is not dependent on wavelength. 
d)
energy is cancelled out
67.
Which part of the electromagnetic spectrum has high enough energy to cause damage to eyes and skin, and sometimes even cancer? 
a)
infrared light
b)
visible light
c)
ultraviolet light
d)
microwaves
68.
Which of the following electromagnetic waves is given off as heat? 
a)
ultraviolet light
b)
x-rays
c)
gamma rays
d)
infrared rays
69.
A wave with a large wavelength will have a ______ frequency and _____ energy
a)
high, low
b)
high, high
c)
low, high
d)
low, low
70.
These are the waves that are used to penetrate solids and are used to create medical images.
a)
visible light
b)
gamma rays
c)
x rays
d)
microwaves
71.
The distance between one point of a wave to the same point on the next wave.
a)
frequency
b)
wavelength
c)
amplitude
d)
crest
72.
The lowest point of  a transverse wave
a)
crest
b)
trough
c)
amplitude
d)
wavelength
73.
The type of wave that DOES NOT need a medium to travel through
a)
mechanical
b)
electromagnetic
74.

What type of wave is a light wave?

a)

A sound wave

b)

A seismic wave

c)

A electromagnetic wave

d)

A mechanical wave

75.

What is the frequency of this model wave?

a)

10 waves per second

b)

3 waves per second

c)

6 waves per second

d)

2 waves per second

76.

Gamma Rays are

a)

High energy

b)

Low energy

c)

Medium energy

d)

Just right

77.

What is ultraviolet light

a)

Light that has more energy than regular light so we can't see it.

b)

Light that has less energy than regular light so we can't see it.

c)

Light that is only given off at night.

d)

Light that only All Might can see.

78.

When looking at an example of a light wave, what is the highest point on the wave called?

a)

trough

b)

amplitude

c)

crest

d)

wavelength

79.

Can light cause a genetic material to be damaged?

a)

Yes. The genetic material can take in energy from the light.

b)

Yes. The light pulled out energy from the genetic material.

c)

No. Light can only heat up materials.

d)

No. Light is not a physical thing so it cannot change physical things.

80.

When looking at an example of a light wave, the measurement of one wave to the next is called what?

a)

trough

b)

amplitude

c)

crest

d)

wavelength

81.

When looking at an example of a light wave, what is the lowest point on the wave called?

a)

trough

b)

amplitude

c)

crest

d)

wavelength

82.

In the equation E = mc2 what does the E stand for?

a)

energy

b)

efficiency

c)

exertion

d)

endurance

83.

In the equation E = mc2 what does the variable C represent?

a)

change

b)

compression

c)

speed of light

d)

speed of sound

84.

Who created the equation E = mc2?

a)

Niels Bohr

b)

Albert Einstein

c)

Isaac Newton

d)

Galileo Galilei

85.

What is the correct order of the visible light spectrum starting with the longer wavelength?

a)

Red, yellow, orange, blue, violet, indigo

b)

Violet, indigo, blue, green, yellow, orange, red

c)

Green, yellow, blue, indigo, red, orange

d)

Red, orange, yellow, green, blue, indigo, violet

86.
What is an example of a wave with a long wavelength and low frequency?
a)
Gamma rays
b)
Infrared
c)
Radio
d)
Visible light
87.
An example of a wave with a short wavelength, high frequency, and high energy is a 
a)
X-ray
b)
Microwave
c)
Visible light wave
d)
Infrared wave
88.
What waves have the lowest energy? 
a)
Gamma rays
b)
Visible light waves
c)
Radio waves
d)
X rays
89.

Which color has the longest wavelength?

a)

Yellow

b)

Red

c)

Green

d)

Purple

90.
The higher the frequency the ______ the energy. 
a)
higher
b)
lower
c)
neither, stays the same
91.

The lower the frequency the ______ the energy.

a)

higher

b)

lower

c)

neither, stays the same

92.
Which electromagnetic waves have the highest frequencies and the shortest wavelengths?
a)
microwaves
b)
visible light
c)
gamma rays
93.
Which electromagnetic waves are used in ovens and cell phone communications?
a)
Infrared rays
b)
ultraviolet rays
c)
microwaves
94.
Which type of waves are used in broadcasting?
a)
radio waves
b)
infrared rays
c)
x-rays
95.
Which of the following has wavelengths longer than microwaves?
a)
Infrared waves
b)
Radio waves
c)
Visible light
96.
Which electromagnetic waves allow us to diagnose & treat cancer?
a)
Gamma rays
b)
X-rays
c)
Ultraviolet rays
97.
Which of the following has frequencies higher than ultraviolet rays?
a)
visible light
b)
infrared rays
c)
x-rays
98.
Which electromagnetic waves help doctors detect broken bones inside your body?
a)
gamma rays
b)
x-rays
c)
ultraviolet rays
99.
Which of the following lists the electromagnetic waves in order of increasing wavelength?
a)
X-rays, visible light, radio waves
b)
gamma rays, microwaves, UV rays
c)
infrared rays, radio waves, x-rays
100.

A wave with a large wavelength will have (a)  

Choose from the below words
Low Frequency & Low Energy
High Frequency & High Energy
High Frequency & Low Energy
Low Frequency & High Energy

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