1. Scientists in a lab are working on a series of experiments that involve colliding two or more atomic nuclei at very high speeds to form a new type of atomic nucleus. What are they working on?

a. convection

b. radiation

c. nuclear fusion

d. nuclear fission

2. Scientists around the world have been working for decades on perfecting the process of nuclear fusion in the lab. Which statement justifies this research?

a. Scientists are looking for a way to generate an unlimited source of hydrogen.

b. Scientists are looking for a way to absorb the energy produced by nuclear bombs.

c. Scientists are looking for a way to produce the uncommon noble gas helium.

d. Scientists are looking for a way to create cheap, safe, and sustainable energy.

1. The right answer is c. nuclear fusion

Nuclear fusion, sometimes called thermonuclear fusion, is a process where two light atomic nuclei assemble to form a heavier nucleus. This reaction is at work naturally in the Sun and most stars of the Universe.

The fusion of nuclei releases a great amounts of energy from the attraction between them due to the strong interaction.

2. The right answer is D.

If the fusion could be used in the military field with the H bombs, there is still no civil application of the fusion for the production of electricity. Only study prototypes could be built, such as the JET reactor.

But an international project is currently underway: ITER (International Thermonuclear Experimental Reactor). This future plant aims to produce 10 times more than it consumes, which will make nuclear fusion a source of energy in the longer term than fossil fuels whose current population will probably see exhaustion.

Answer for #1 is C and answer for #2 is D are the correct answers