Radioactivity and Energy

Which components of a fission reactor are used to slow neutrons during a fission reaction?

• moderators

• shields

• coolants

• control rods

The main function of a coolant in a nuclear fission reactor is to

• slow down the speed of the neutrons

• absorb energy produced by the reaction

• shield the wall of the reactor from radiation damage

• adjust the number of neutrons available for reaction

Control rods in nuclear reactors are commonly made of boron and cadmium because these two elements have the ability to

• absorb neutrons

• emit neutrons

• decrease the speed of neutrons

• increase the speed of neutrons

Nuclear Power's source comes from _________________.

• Uranium or Plutonium
• Coal
• Natural Gas
• Oil and/or Coal

What is a chain reaction?

• When electrons are emitted causing electricity
• When a nuclear fission reaction occurs, the protons emitted can strike other nuclei in the sample, and cause them to split
• When a nuclear fission reaction occurs, the neutrons emitted can strike other nuclei in the sample, and cause them to split
• When a nuclear fission reaction occurs, the electrons emitted can strike other nuclei in the sample, and cause them to split

Tags

NGSS.HS-PS1-8

What do  control rods do in a nuclear reactor?

• Regulate the rate of reaction  by absorbing and slowing neutrons
• Produce electricity
• Produce neutrons to increase the rate of reaction
• Reduce heat produced by the uranium rods

Tags

NGSS.HS-PS1-8

How do nuclear power-plants work?

• Fusion
• Half-life
• Fission
• Fusion or fission

Tags

NGSS.HS-PS1-8

This is an example of...

• Fission  reaction
• Fusion reaction
• Decomposition reaction
• Combustion

Tags

NGSS.HS-PS1-8

Nuclear energy uses _____ to turn turbines to power a generator.

• wind
• water
• steam
• solar

Tags

NGSS.HS-PS3-4

An example of an uncontrolled fission reaction is _______________

• Nuclear power plants
• Radio active decay
• Atomic Bomb
• On the surface of the sun

Tags

NGSS.HS-PS1-8