A nucleus becomes stable when the attractive nuclear forces outweigh the repulsive electrical forces.

• True

• False

Tags

NGSS.HS-PS1-8

Nuclear reactions involve changes to the nucleus and typically release more energy than chemical reactions.

• True

• False

Tags

NGSS.HS-PS1-8

Fusion is not a viable option for energy production because it produces excessive energy that is difficult to manage.

• True

• False

The risk of harm from radiation increases with prolonged exposure and proximity to the source.

• True

• False

Einstein's equation E=mc2 implies that _______(E) can be converted into ______(m).

• energy, mass

• efficiency, mass

• energy, material

• speed of light, matter

What is the process called when two lighter atomic nuclei merge to form a single heavier nucleus?

• fission

• fusion

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

A large nuclei splits into two smaller nuclei.

• fission
• fusion

Tags

NGSS.HS-PS1-8

The result of fission and fusion is that the atoms are _____.

• dense
• stable
• massive
• none of the above

Tags

NGSS.HS-PS1-8

In ______, atoms of hydrogen combine to form helium.

• fission
• fusion

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

A radioactive nucleus:

• spontaneously emits a particle then changes into another element
• spontaneously emits a particle but remains the same element.
• is an electron emitted from the nucleus
• causes more ionization than beta.

Tags

NGSS.HS-PS1-8