PS Unit #5 Test Review

Nuclear reactions are only harmful.

• True

• False

Tags

NGSS.HS-PS1-8

Nuclear radiation occurs because

• there are too many electrons

• magnets rip them apart.

• the nucleus is unstable.

• gravity can't hold them together.

Tags

NGSS.HS-PS1-8

The nucleus is unstable because

• the strong nuclear force can't hold it together.

• there are too many protons.

• there are too few neutrons.

• all of the options are correct.

Tags

NGSS.HS-PS1-8

This holds the nucleus together?

• magnetism

• strong nuclear force

• gravity

• none of the above

After nuclear decay, the original element has

• stayed the same.

• changed the nucleus.

• lost electrons.

• changed life forms.

Tags

NGSS.HS-PS1-8

The time it takes for half a material to change to another material is known as

• half-life

• mutation

• chemical change

• physical change

Tags

NGSS.HS-PS1-8

During fission, some of the mass is changed to

• heavier nuclei

• protons

• electrons

• energy

Tags

NGSS.HS-PS1-8

Fusion is creating bigger nuclei by fusing two atoms together.

• True

• False

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Fusion is used by

• nuclear power plants

• stars

• atomic bombs

• radiation

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Which type of change is changing the bonding pattern of compounds?

• physical change

• nuclear change

• chemical change

• none of the above

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5