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Lesson: Nuclear Energy | Mr. Q

Lesson: Nuclear Energy | Mr. Q

Assessment

Presentation

Physics

9th - 12th Grade

Practice Problem

Hard

Created by

David Q

Used 4+ times

FREE Resource

21 Slides • 8 Questions

1

Labelling

Fill in the blanks.

Drag labels to their correct position on the image
oxygen
O2
sulfur dioxide
sulfuric acid
H2O

2

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​Negative Impacts:

  1. Acid rain (sulfuric acid)

  2. Changing rainfall patterns

  3. Famine

  4. Cooler surface but hotter stratosphere

  5. Destroy ozone layer

  6. Political excuse to delay action.

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6

Another kind of energy

Mr. Q, 2023

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​Stratospheric aerosol injections, space mirrors, cloud seeding

1-Lower amount of energy we get from the sun

​CO2 air capture and storage, biochar, afforestation, direct injection, alkalinity addition

2-Reduce the carbon in the atmosphere

​​3-???

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makes life on Earth possible (grow plants that produce oxygen, create warmth)

Solar Energy

falling mass produces energy (hydroelectric energy), maintains Earth's atmosphere

​​Gravitational Energy

???

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​3 biggest sources of energy on Earth

9

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Structure of the Atom

Cloud (-)

​Electron (-)

Nucleus (+)

Proton (+)

Neutron (neutral)

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10

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Nuclear energy

11

Types of nuclear reactions

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12

1. Nuclear Fission

A nuclear reaction in which a big (heavy) nucleus splits

  1. spontaneously or

  2. when hit by another particle,

with the release of energy.

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​1. Spontaneous decay of Radium 226 into Radon 222 and alpha particle

​2. when hit by another particle.

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2. On impact with another particle:​

Nuclear fission chain reaction

Reactants

235U

uranium

Products

13956Ba

barium 139

n

neutron

+

--->

+

n

neutron

9536Kr

krypton 36

+

15

16

Multiple Select

Can you guess where nuclear fission occurs?

1

Most current nuclear power plants

2

All around us

3

In radioactive waste

4

In the sun

5

In nuclear bombs

17

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Small amounts of nuclear fission is happening all around us

(Carbon Dating)

18

Nuclear Power Plants

  • Reactors with controlled U-235 fission reactions

  • These reactions produce heat & steam, which spins turbines that generate electricity.

  • A very small amount of U-235 can produce the same amount of energy as a very large amount of coal (fossil fuel!) & no CO2 is produced.

  • There is a limited supply of U-235 & fission produces radioactive waste.

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​Storing the byproduct of nuclear energy (nuclear waste) is a long-term problem.

20

Fusion

A nuclear reaction in which two atoms with a small nucleus fuse to form one atom with a bigger (heavier) nucleus with the release of energy.

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Reactants

3H

tritium

Products

He

helium

2H

deuterium

+

->

+

----

Reactants

X

element X

0.1 kg

Products

Q

element Q

0.21 kg

Y

element Y

0.12 kg

+

->

+

----

21

Multiple Choice

Question image

Have a guess:

If you put the reactants and products of a nuclear reaction on a tiny balance, which one would have more mass?

(The picture is of a nuclear fusion reaction.)

1

The reactants would have more mass.

2

The products would have more mass.

3

The reactants and products should have the same mass.

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Where did the mass go?

23

Calculating the energy released from

Known:

m = what is missing

= total massproducts - total massreactants

= 0.22kg - 0.21kg

=0.01kg

c = speed of light ​= 3.0 x 108 m/s

Formula:

E=mc2

​E = mc2

= 0.01kg x (3x108 m/s)2

= 0.01kg x 9x1016 m2/s2

= 9x 1015 kg m2/s2

= 9x 1015 J

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24

Multiple Choice

Can you guess where fusion occurs?

(Hint: It's natural.)

1

Most current nuclear power plants

2

All around us

3

In radioactive waste

4

In the sun

5

In nuclear bombs

25

The Sun

  • a massive ball of plasma.  

  • It is constantly burning so hot that hydrogen is fused together to form helium.

  • This happens at such a rate that a huge amount of energy is released.

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26

Multiple Select

Which of the following correctly display nuclear fission?

1
2
3
4
5

27

Multiple Select

Which of the following correctly display nuclear fusion?

1
2
3
4
5

28

Multiple Choice

The process of combining the nuclei of atoms to make different atoms is called _________?

1

Fission

2

Nuclear Reaction

3

Fusion

4

Particle Accelerator

29

Multiple Choice

Breaking up the nucleus of an atom is called _________?

1

Fusion

2

Nuclear Reaction

3

Fission

4

Particle Accelerator

Fill in the blanks.

Drag labels to their correct position on the image
O2
H2O
oxygen
sulfur dioxide
sulfuric acid

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LABELLING