Front

What is nuclear fission?

Back

Nuclear fission is a reaction in which the nucleus of an atom splits into two or more smaller nuclei, along with the release of energy.

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NGSS.HS-PS1-8

Front

What is nuclear fusion?

Back

Nuclear fusion is a reaction in which two light atomic nuclei combine to form a heavier nucleus, releasing energy in the process.

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Front

What type of radioactive particle can be stopped by a sheet of paper?

Back

Alpha particle.

Front

How many neutrons are in the isotope Uranium-235?

Back

143 neutrons.

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NGSS.HS-PS1-8

Front

What is the equation that represents the relationship of energy to mass?

Back

e = mc².

Front

Which electromagnetic wave has the highest energy?

Back

Gamma waves.

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NGSS.HS-PS4-4

Front

What is an alpha particle?

Back

An alpha particle is a type of radiation consisting of two protons and two neutrons, equivalent to a helium nucleus.

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Front

What is a beta particle?

Back

A beta particle is a high-energy, high-speed electron or positron emitted during radioactive decay.

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What is gamma radiation?

Back

Gamma radiation is a form of electromagnetic radiation of high energy and short wavelength, emitted from radioactive decay.

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Front

What is the half-life of a radioactive substance?

Back

The half-life is the time required for half of the radioactive atoms in a sample to decay.

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