WorksheetsGr. 9 Electricity Review (Circuits)
Total questions: 25
Worksheet time: 25mins
Why is electrical wiring usually are covered with a layer of plastic?
To make it look pretty
To help electricity flow along the wire
To make it safe
To add more energy
What is a circuit with several paths for electricity to flow?
conductor
series circuit
parallel circuit
open circuit
When the switch is closed the buzzer will sound because -
What am I in a circuit diagram?
Leads Connecting
Conductor
Closed Switch
Switch
What am I in a circuit diagram?
Open Switch
Closed Switch
Conductor
Switch
What am I in a circuit diagram?
The Letter A
Voltmeter
Ammeter
Current
What am I in a circuit diagram?
Voltmeter
Ammeter
Volts
Ohms
What am I?
The rate of flow of electrons in a circuit measured in amps (A)
Voltage
Resistence
Current
Ohms
What am I?
A measure of how much energy is available from the power source (e.g. battery) in volts (V), and is used when current passes through a load.
Voltage
Resistence
Current
Ohms
What am I?
A measure of how much a load (e.g. globe, motor, resistor) restricts and reduces the flow of current measured in ohms (Ω).
Voltage
Resistence
Current
Ohms
What Law am I?
(?) law describes the relationship between the current, voltage and resistance in a circuit.
Voltage
Resistence
Current
Ohms
What am I in a circuit diagram?
Cell
Battery
Closed Switch
Lead
What am I in a circuit diagram?
Battery
Variable resistor
Fixed resistor
Cell
1. Which switch or switches must be closed to make the lamps light?
Only switch a
Only switch b
Switches a and b
Switches a , b and c
