Which component has the following function? To measure the potential difference (the voltage) between two points in a circuit. This device is always connected in parallel.

Which component has the following function? Measures the current in amperes, also known as amps (A). This device is connected in series. The current will be the same in all parts of the circuit.

Which component has the following function? Acts as a one way valve for electricity. It allows current to only flow in one direction.

Which component has the following function? Controls the electric current and voltage. It introduces resistance so current flow can be limited to safe levels to protect components. It is measured in Ohms.

Which component has the following function? This is used to control the flow of current or voltage by allowing the resistance to be adjusted either manually or automatically. These can be used to regulate light brightness, motor speed or volume.

Which component has the following function? This protects circuits from damage caused by excess current. It is a thin wire that heats up and melts when the current becomes too high. This then causes a break in the circuit and stops the flow of electricity.

Which component has the following function? This acts as a light sensitive sensor that changes its resistance based on light intensity. As the brightness of the light increases, the resistance decreases. They are used in street lights and garden lights so that they turn on during the night and off during the day.

Which component has the following function? This component changes electrical energy into a source of light energy that has a high energy efficiency, this means less energy is lost to heat energy.

Which component has the following function? This is a temperature dependent sensor. The resistance decreases as the temperature increases. They are often used in digital thermometers, fire alarms and engine sensors.

Resistance is measured in Ohms. What is the symbol for Ohms?

Which type of current is used for mains electricity in the home? This is an electrical current that continuously reverses direction, flowing back and forth, switching between positive and negative.

What voltage is electricity in UK homes?

Which type of current flows in one direction only and flows from positive to negative? This is a constant, consistent voltage found in batteries, cells and solar cells and is used to power non-mains powered appliances.

What do we call a circuit with multiple loos (branches) that allow the current to spilt and take different paths?

What type of circuit would the circuit be if  one bulb was removed and the other stayed lit?

What type of circuit would the circuit be if  it contained two bulbs and both bulbs shone brightly?

What type of circuit would the circuit be if  one bulb was removed and the other also went out?

What type of circuit would the circuit be if  it contained two bulbs but they were both dimly lit?

What do we call a circuit where all the components are connected end to end in a loop, the current is the same in all parts and if we remove one component, all the other components also stop working?

What colour is the earth wire in a plug?

What colour is the live wire in a plug?

What colour is the neutral wire in a plug?

Which wire in a plug is the "safety" wire, it carries the current to the ground if a fault occurs. 

Which wire in a plug has the "job" of carrying the alternating current at 230V

Which wire in a plug has the "job" of completing the circuit and taking the current back to the source?