Grade 10 · Science · Chemistry

10th grade Fission, fusion and how radiation is used worksheet

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Fission, fusion and how radiation is used

Grade 10 Science Worksheet - Challenge Me

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Circle the best answer, or write your answer on the line.

Fission of uranium-235 gives about 2500000 times the energy of the same mass of coal. How many kilograms of coal match 2 kg of uranium-235, Ari?
Fission of uranium-235 gives about 2500000 times the energy of the same mass of coal. How many kilograms of coal match 0.5 kg of uranium-235, Bo?
Fission of uranium-235 gives about 2500000 times the energy of the same mass of coal. How many kilograms of coal match 3 kg of uranium-235, Esme?
4.
What is the Sun's main nuclear fuel, Kira?
- Uranium
- Coal
- Hydrogen
5.
What charge does a positron carry, Luz?
- +1
- 0
- −1
6.
Milo says the Sun shines by splitting heavy atoms. Agree or disagree?
- Agree: the Sun splits heavy atoms like a reactor
- Agree: the Sun burns coal
- Disagree: it fuses hydrogen into helium
7.
Noah says nuclear power plants make energy by joining hydrogen nuclei. Agree or disagree?
- Agree: plants join light nuclei like the Sun
- Disagree: they split uranium-235
- Agree: plants burn hydrogen gas
8.
Which isotope or process fits dating a wooden bowl, Ren?
- Hydrogen fusion
- Carbon-14
- Uranium-235 fission
9.
Which isotope fits a short-lived tracer for medical scans, Tala?
- Technetium-99m
- Uranium-235
- Carbon-14
10.
Which isotope or process fits making electricity in a power plant, Zee?
- Uranium-235 fission
- Carbon-14 dating
- Technetium-99m tracers

Fission, fusion and how radiation is used. Every version has 10 questions, and the answer key prints on the second page.

I can tell fission (splitting heavy nuclei) from fusion (joining light nuclei).
I can balance a fission equation's mass and atomic numbers, including the incoming neutron.
I can explain how a power plant turns fission heat into electricity and how the Sun's fusion works.
I can match uses to processes: power plants, carbon-14 dating, medical tracers and the Sun.

Standard: HS-PS1-8

fission: A heavy nucleus splitting into smaller ones

fusion: Light nuclei joining into a heavier one

chain reaction: Neutrons from one fission causing more fissions

control rod: A rod that absorbs neutrons to set a reactor's rate

positron: A particle like an electron with charge +1

Your child left out the neutron that starts the fission. The left side's mass number is 235 + 1 = 236.

Your child divided. Uranium-235 gives about 2.5 million times the energy of the same mass of coal, so multiply.

Your child swapped fission and fusion. Fission splits heavy nuclei (power plants); fusion joins light nuclei (the Sun).

What is the most common mistake with fission, fusion and how radiation is used?

Your child left out the neutron that starts the fission. The left side's mass number is 235 + 1 = 236.

Are these 10th grade science worksheets free to print?

Yes. All 6 printable versions at each level are free to print, with the answer key, and no account is needed.

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