Physical Science Chapter 2

One of the locations for the bulk of energy in the universe is in the __________ produced by the stars.

• electromagnetic radiation

• cosmic microwave background

• kinetic energy

• gravity

One of the locations for the bulk of energy in the universe is in the __________ that permeates space with the leftover energy from the Big Bang.

• electromagnetic radiation

• cosmic microwave background

• kinetic energy

• gravity

One of the locations for the bulk of energy in the universe is in the __________ of all the motion of galaxies as the rotate and rush away from each other in an expanding universe.

• electromagnetic radiation

• cosmic microwave background

• kinetic energy

• gravity

One of the locations for the bulk of energy in the universe is in the stored energy of __________ which attracts all objects in the universe together.

• electromagnetic radiation

• cosmic microwave background

• kinetic energy

• gravity

Energy is produced by the sun through a process called ________.

• fission

• fusion

• chemical reaction

• heat

Takes two small nuclei and combines them into a larger nucleus

• fission
• fusion

The splitting of a nucleus into smaller nuclei is

• fusion
• fission
• half-life
• gamma radiation

How do nuclear power-plants work?

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

This is an example of...

• Fission  reaction
• Fusion reaction
• Decomposition reaction
• Decay

Where does fusion occur naturally?

• Underwater
• All around us
• In the radioactive waste
• On the sun