Nuclear Physics

What is Half-life?

• The amount of time it takes for some of the nuclei in a sample of the isotope to decay
• The amount of time it takes for half the electrons in a sample of the isotope to decay
• The amount of time it takes for half the nuclei in a sample of the isotope to decay
• the amount of time it takes to double the nuclei in a sample of the isotope to decay

Tags

NGSS.HS-PS1-8

What type of decay is shown here

²³⁸₉₂U ---> ²³⁴₉₀Th + ⁴₂He.

• alpha

• beta

• gamma

Tags

NGSS.HS-PS1-8

Identify the type of nuclear decay shown here

²¹⁴₈₃Bi → ⁰_-1e + ²¹⁴₈₄Po

• alpha

• beta

• gamma

Tags

NGSS.HS-PS1-8

The half-life of strontium-90 is 25 years. How much strontium-90 will remain after 100 years if the initial amount is 4.0 g?

• 3.0g
• 0.25mg
• 0.3g
• 0.25g

Tags

NGSS.HS-PS1-8

This is an example of ---

• Radioactive Decay
• Nuclear Fission
• Nuclear Fusion
• Fossil fuel reaction

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NGSS.HS-PS1-8

In order of most to least penetrating radiation we have

• Alpha , Beta, Gamma

• Beta , Gamma , Alpha

• Gamma, Beta, Alpha

• Gamma, Alpha, Beta

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NGSS.HS-PS1-8

Process occuring on sun

• Nuclear fission
• Nuclear fusion
• Fossil fuel combustion
• Natural gas combustion

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Disadvantage of nuclear fission

• Toxic waste 
• Large amounts of energy produced
• Frequent meltdowns
• Air pollution

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NGSS.HS-ETS1-3

Advantage of nuclear energy

• Nuclear energy is renewable
• Can use any element to produce power
• Converts a small mass into a lot of energy
• Produces no waste

Tags

NGSS.HS-ESS1-1

What is an advantage  of nuclear energy?

• radioactive waste
• no pollution
• we will never run out
• it is the safest way to make energy