Pretest

Question 1

Why are very high temperatures and pressures required for fusion to occur?

Revolt · Accepted Answer

to overcome the repulsion between the protons in the nuclei that join

Question 2

Which element is the primary fuel used to generate electricity using nuclear energy?

Revolt · Accepted Answer

uranium

Question 3

How do fission nuclear reactions differ from fusion nuclear reactions?

Revolt · Accepted Answer

Fission reactions are used to generate electricity for consumers, but fusion reactions are not.

Question 4

Which feature of nuclear fission reactions allows these reactions to take place in a chain reaction?

Revolt · Accepted Answer

Neutrons start the reaction and are released during it.

Question 5

Improvements in which area would help reduce the possibility of damage to the environment when using uranium as a fuel?

Revolt · Accepted Answer

more-efficient extraction techniques

Question 6

In which situation is nuclear power most beneficial?

Revolt · Accepted Answer

if there is an isolated location

Question 7

What is Albert Einstein’s contribution to the understanding of nuclear energy?

Revolt · Accepted Answer

He proposed that matter can be converted to energy and vice versa.

Question 8

Which refers to the continuous release of nuclear energy caused when one fission reaction triggers more nuclear reactions?

Revolt · Accepted Answer

chain reaction

Question 9

During early research in nuclear energy, why were scientists surprised that the products from splitting a uranium nucleus had less mass than the reactants?

Revolt · Accepted Answer

All known changes always started and ended with the same amount of mass.

Question 10

What is the correct order of energy conversions associated with a power plant that uses nuclear fission reactions?

Revolt · Accepted Answer

nuclear to thermal to mechanical to electrical

Pretest Answers

More from this Course

TRY EDGENUITY HACKS