LSS 9.5 Source of Energy

Which of the following is not a renewable source of energy?

• solar energy

• biofuels

• nuclear energy

• fossil fuels

Reorder the following to describe the process of fossil fuels being converted into electrical energy

• chemical potential energy (fossil fuel)

• heat energy (burning fossil fuel)

• kinetic energy (turbine)

• electrical energy (generator)

Which source of energy is observed in this image?

• nuclear energy

• hydroelectric energy

• geothermal energy

• solar energy

Which of the following are negative impacts on environment due to hydroelectric energy? Select all options.

• It produces a large amount of greenhouse gases

• It floods the area behind the dam

• It destroys habitats

• It kills plants and animals

Reorder the following according to the energy conversion from hydroelectric energy to electrical energy

• kinetic energy (turbine)

• kinetic energy (moving water)

• electrical energy (generator)

• gravitational potential energy (water stored behind dam)

This clean source of energy can generate harmful radioactive substances.

• biofuels

• nuclear

• geothermal

• solar

For nuclear energy, the following energy conversion is observed:
nuclear energy (atoms) --> ............... energy --> kinetic energy (turbine) --> electrical energy (generator).

Fill in the missing blank.

Why is wind energy not being harnessed in Singapore?

• Lack of expertise

• Lack of river

• Lack of strong winds

• Lack of space available

Heat energy stored in the Earth's core is known as ....................... energy.

Reorder the following to describe the energy conversion involved in converting geothermal energy into electrical energy

• heat energy (Earth's core)

• kinetic energy (turbine)

• electrical energy (generator)

• kinetic energy (steam)