SPS4 EOC Review Nuclear Chemistry 24-25

What is the definition of nuclear fission?

• The combining of light atomic nuclei to form heavier nuclei

• The splitting of a heavy atomic nucleus into lighter nuclei

• The release of energy from the sun

• The process of radioactive decay

Tags

NGSS.HS-PS1-8

Match the following processes with their descriptions.

• Nuclear fission

• Energy is released from the sun

• Solar energy generation

• Light nuclei join under high temperature

• Chemical bonding

• Atoms combine to form molecules

• Nuclear fusion

• A neutron strikes a large unstable nucleus, causing it to split

Tags

NGSS.HS-PS1-8

Nuclear fission results in: (select all that apply)

• Two or more smaller nuclei

• Release of neutrons

• Release of energy

• Formation of heavier nuclei

Tags

NGSS.HS-PS1-8

What is the definition of nuclear fusion?

• The splitting of a heavy atomic nucleus into lighter nuclei

• The combining of light atomic nuclei to form heavier nuclei

• The process of radioactive decay

• The release of energy from the sun

Tags

NGSS.HS-ESS1-1

Nuclear fusion occurs when:

• A) A neutron strikes a large unstable nucleus

• B) Light nuclei join under conditions of extreme temperature and pressure

• C) Atoms lose electrons

• D) Energy is released from the sun

Tags

NGSS.HS-ESS1-1

Fusion results in: (Select all that apply)

• Heavier nucleus

• Release of energy

• Release of neutrons

• Two or more smaller nuclei

Tags

NGSS.HS-PS1-8

Fusion releases more energy per gram of fuel than (a)   .

• fission
• combustion
• evaporation
• condensation

Tags

NGSS.HS-PS1-8

List the components of a fission model.

• Original heavy nucleus, Incoming neutron, Resulting fragments, Released neutrons, Energy release

• Proton, Electron, Alpha particle, Beta particle, Gamma ray

• Neutron, Positron, Electron, Muon, Tau

• Original light nucleus, Outgoing proton, Absorbed electron, Emitted photon, No energy release

Tags

NGSS.HS-PS1-8

List the components of a fusion model.

• Light nuclei, High temperature/pressure conditions, Resulting heavier nucleus, Released energy

• Heavy nuclei, Low temperature/pressure conditions, Resulting lighter nucleus, Absorbed energy

• Electrons, Magnetic fields, Resulting ions, No energy change

• Neutrons, Low temperature, Resulting protons, No energy released

Tags

NGSS.HS-PS1-8

NGSS.HS-ESS1-1

If you start with 80 grams of a radioactive substance, (a)   remains after one half-life.

• 40 grams
• 20 grams
• 60 grams
• 80 grams

Tags

NGSS.HS-PS1-8