Fossil Fuels and Electricity Generation Quiz

What happens during nuclear fusion?

• Atoms split into several parts

• Atoms fuse together

• Atoms evaporate

• Atoms condense

Which fossil fuel can produce heat instantly?

• Coal

• Oil

• Gas

• Nuclear

What is a characteristic of fossil fuels?

• They are renewable

• They are infinite

• They are finite

• They are non-polluting

What is the highest voltage used in the National Grid transmission system?

• 132 kV

• 275 kV

• 400 kV

• 500 kV

What do step-up transformers do?

• Increase the voltage.

• Decrease the voltage.

• Convert AC to DC.

• Store electrical energy.

What happens to current if voltage is decreased in a circuit?

• Current will increase.

• Current will decrease.

• Current will remain the same.

• Current will stop.

What is the SI unit of electromotive force or circuit voltage?

• Ohm (#)

• Watt (W)

• Volt (V)

• Ampere (A)

What is the role of an electromotive force (emf) in a circuit?

• It stops the flow of electrons.

• It reverses the flow of electrons.

• It controls the flow of electrons in one direction.

• It insulates the circuit.

In the formula V = IR, what does "R" denote?

• Resistance

• Reactance

• Radius

• Rate

What does the triangle diagram in the image represent?

• The relationship between voltage, current, and resistance

• The relationship between power, energy, and time

• The relationship between force, mass, and acceleration

• The relationship between speed, distance, and time