Science Form 4 KSSM Topic 12

Which of the following. statements, is not true about nuclear energy?

• Nuclear energy is the energy produced from the change in an unstable nucleus.

• A large amount of energy is produced when a nucleus is split or joined together

• Nuclear energy is one of the safest forms of energy to environment.

• The technology and infrastructure to produce nuclear energy is cheaper compared to fossil fuels.

Which of the following is the disadvantage of nuclear energy production?

• It does not release poisonous gases that will cause air pollution.

• Only a small quantity of fuel is required to produce so much of energy.

• It can be used to develop nuclear weapons.

• It is cheaper to generate electrical energy.

Nuclear energy frequently used for...

• fueling cars and lorries.

• fueling long-range submarines.

• fueling speedboats.

• fueling trains.

The diagram shows a nuclear reaction. What type of reaction is shown in the diagram above?

• Burning reaction

• Neutralisation reaction

• Nuclear fusion

• Nuclear fission

The diagram shows the change of energy during the process of electricity generation from nuclear energy. What medium can be used to trap the heat energy which will be sent to the turbine to be converted into kinetic energy?

• Air

• Carbon

• Water

• Hydrogen

The diagram shows a nuclear fission. What is W?

• Barium

• Carbon

• Cobalt

• Hydrogen

Nuclear fusion reaction occurs naturally in the...

• ozone layer.

• clouds.

• sea.

• sun.

The diagram shows the structure of a nuclear reactor used in of generating electricity. What is metal Q?

• Gold

• Lead

• Zinc

• Platinum

The diagram shows the process of generating electricity from nuclear energy. What are energy R and S energy?

• R: Kinetic energy | S: Heat energy

• R: Chemical energy | S: Kinetic energy

• R: Heat energy | S: Kinetic energy

• R: Kinetic energy | S: Chemical energy

In a nuclear reactor, which part converts nuclear energy to heat energy?

• Pump

• Steam turbine

• Reactor

• Dynamo