Nuclear Energy & Proliferation

What nuclear process occurs in the sun?

• fission

• fusion

• endothermic

• atomic bomb

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Fusion changes 2 hydrogen atoms into what?

• helium

• uranium

• Iron

• U-235

Which statement is not TRUE

• Fusion in a star forms all of the elements up to iron (Fe).

• When two stars collide it causes a super nova.

• The explosion of a super nova creates all of the elements heavier than iron.

• We are all made of stardust.

Process whereby the atomic nucleus splits then creating two lighter elements is called

• Fusion

• Fission

• Proliferation

• Fuel Cycle

Nuclear fission of Uranium-235 causes a chain reaction because

• A single neutron splitting a U-235 atom creates 3 more neutrons that can split 3 more U-235 atoms.

• The reaction creates a large amount of heat.

• It does not create a chain reaction.

• Neutrons weigh much more than electrons.

In this reaction the U-235 and single neutron have more mass than the Ba-141, Kr-92 and 3 neutrons. What happened to the "lost" mass?

• It evaporates.

• It creates a black hole.

• It becomes energy following the equation E = mc²

Who was the scientist that discovered that relationship between mass and energy of matter can be calculated?

• Marie Curie

• Ernest Rutherford

• Albert Einstein

• Thomas Edison

Nuclear power plants currently generate around what percent of electricity in the US

• 1%
• 9%
• 19%
• 29%

Nuclear power uses ____ for fuel.

• steel
• coal
• uranium
• hydrogen

Tags

NGSS.HS-PS1-8

Splitting a uranium atom is called -

• fission

• fusion