General Electricity
Voltage
Current
Circuits
Skills
100
what does the word static mean?
still or not moving.
100
what is the unit and symbol for voltage?
Volts (V)
100
what is the unit and symbol for Current?
Amps (A)
100
which circuit is series and which one is parallel? 
left = parallel
Right = series
100
what is an independent variable?
the ONE thing you change during an experiment.
200
which is a conductor?
A material that allows electricity to flow through it.
200
What is Voltage?
Voltage is the electrical force that pushes electrons through a circuit.
200
What is current?
Current is the flow of electrons through a circuit.
200
what does this symbol represent?
a switch (off)
200
Explain the 2 steps required to work out an average (mean)
1. Add up all the numbers
2. Divide the total by the number of numbers
300
which of these is a conductor:
copper or glass?
copper
300
True or False:
Voltage is the same at every point of a parallel circuit.
True!
300
True or False:
Current is the same at every point of a parallel circuit.
False!
- The current splits at a junction.
- The total current from the power supply equals the sum of the currents in all branches.
300
Draw the symbol of a resistor.
300
A student measures the electricity used by a small heater over 5 days. The electricity usage (in kWh) is:
12, 15, 11, 14, 18
Calculate the mean electricity usage of the heater over the 5 days.
Average =512+15+11+14+18
Average =70/5
Average = 14!
400
Name the 3 fossil fuels.
Natural Gas, Crude Oil and coal.
400
What will the voltage be at points D, E and F?
D = 5V
E = 5V
F = 5V
400
What will the current be at points Y and Z?
Y = 3A
Z= 3A
400
Draw how you would measure the current and voltage of the bulb in this circuit.
Ammeter connected in series
Voltmeter connected in parallel
400
what is wrong with this graph?
The Scale on the Y axis is not even.
500
Name a disadvantage of wind turbines.
- There isn't always wind
- They can kill birds.
500
What will the voltage be at points A, B and C?
A = 9 V
B = 9 V
C = 9 V
500
What will the current be at points A and B?
A = 2A
B = 2A
500
Describe an advantage of parallel circuits that make them better than series circuits.
- If you add more light bulbs, they all shine with the same full brightness because each branch gets the full power (voltage) from the battery.
- If one bulb breaks, burns out, or is unplugged, the other bulbs keep shining. Each part has its own route back to the battery.
- You can put a switch on one specific branch to turn just one light or buzzer on and off without affecting the others.
500
what is wrong with this graph?
The labels are missing units.