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Nuclear Physics — Test Answers

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Which labels belong in the regions marked X and Y?

X: Provides household electricity Y: Requires high temperature and pressure

X: Provides household electricity Y: Has rods containing uranium

X: Converts mass into energy Y: Does not produce usable amounts of energy

X: Converts mass into energy Y: Is controlled by neutron absorption

Which labels belong in the regions marked X and Y?

X: Takes longer for photons to move through Y: Releases energy to the photosphere

X: Absorbs energy from the core Y: Takes longer for photons to move through

X: Takes longer for photons to move through Y: Absorbs energy from the core

X: Releases energy to the photosphere Y: Takes longer for photons to move through

Which statements are supported by the graph? Choose two correct answers.

Atoms must have equal numbers of protons and neutrons to be stable.

For large atoms, more neutrons than protons are needed to be stable.

Atoms that have less than 10 protons do not need neutrons to be stable.

Nuclei that have 90 or greater protons are always radioactive.

Which labels belong in the regions marked X and Y?

X: Determines ages of objects Y: Uses uranium-238

X: Uses carbon-14 Y: Uses uranium-238

X: Uses uranium-238 Y: Determines ages of objects

X: Uses isotopes with short half-lives Y: Determines ages of objects

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