Fission and Fusion: Nuclear Bombardment

Open Ended

What does 'bombardment' mean in the context of nuclear reactions?

Multiple Choice

What process in the Sun is responsible for the huge release of energy that supports life on Earth?

• Nuclear fusion

• Nuclear fission

• Photosynthesis

• Combustion

Fill in the Blanks

Nuclear fusion is a process where two or more atomic nuclei

to form a larger nucleus.

Fill in the Blanks

The splitting of a heavy nucleus into smaller fragments by hitting it with a high speed particle is called

.

Multiple Choice

Which of the following best describes what happens during nuclear fission as shown in the diagram?

• A neutron splits a uranium nucleus, releasing energy and more neutrons.

• A uranium nucleus absorbs energy and becomes stable.

• A neutron combines with a uranium nucleus to form a larger atom.

• A uranium nucleus loses electrons and becomes positively charged.

Open Ended

Explain two major uses of nuclear fission as described in the lesson.

Multiple Choice

Which of the following statements are correct based on the comparison between nuclear and coal energy?

• 1 gram of nuclear fission material produces as much energy as 3 tons of coal.

• Coal produces more energy per gram than nuclear fission material.

• Nuclear fission material is less efficient than coal for energy production.

• It takes less coal than nuclear material to produce the same energy.

Fill in the Blanks

During a bombardment reaction, a particle goes INTO the nucleus and is written on the

side of the equation.

Open Ended

How does the equation E = mc^2 relate to nuclear reactions?

Multiple Choice

Which of the following correctly describes the mechanism of the 'Little Boy' bomb dropped on Hiroshima in 1945?

• A uranium bullet is fired into a uranium sphere to achieve supercritical mass and start a fission reaction.

• A plutonium core is compressed by explosives to start a fusion reaction.

• A neutron is fired into a uranium sphere to start a chain reaction.

• A uranium sphere is split by a laser to release energy.

Multiple Choice

Which of the following best describes the main function of the cooling tower in a nuclear fission power plant?

• To generate electricity directly from nuclear reactions

• To cool down the steam and condense it back into water

• To contain radioactive materials

• To control the speed of the nuclear reaction

Open Ended

After learning about nuclear fission, fusion, and bombardment, what is one question you still have or something you would like to know more about?

Open Ended

What does "bombardment" mean in the context of nuclear reactions?

Open Ended

Compare and contrast the processes of fusion and fission as described in the review of concepts. What are the key differences in how energy is released in each process?