WorksheetsFossil Fuels and Electricity Generation Quiz
Total questions: 15
Worksheet time: 8mins
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
What happens to the total resistance when resistors are connected in series?
It decreases
It remains the same
It increases
It becomes zero
What is the resistance of the remaining third resistor in series in a circuit, if the voltage is 200V, the current is 4 A and the the other two are 10 and 25 ohms ?
15 Ω
10 Ω
25 Ω
20 Ω
What is the formula used to calculate the voltage across a resistor in a circuit?
V = IR
V = I/R
V = R/I
V = I + R
What is the total voltage across all resistors in the circuit, if the circuit has 5A current and a resistance of
50 ohms?
200 V
100 V
150 V
250 V
What remains constant across all resistors in a parallel circuit?
Current
Resistance
Supply voltage
Power
