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WorksheetsP3 Electricity Revision Quiz
Total questions: 32
Worksheet time: 21mins
What is the charge on an electron
0
-1
+1
Which particles are transferred in static electricity when two insulators are rubbed together?
Protons
Neutrons
Electrons
Atoms
Oppositely charged particles will ...
(a)
Are these charged particles attracting or repelling?
Attracting
Repelling
Current is the rate of flow of electric...
(a)
What device measures current? It must be spelled correctly
(a)
Ammeters must be connected in...
Series
Parallel
If the current in the first ammeter is 5A, what is the current in the second ammeter?
<5A
5A
>5A
If the total p.d. is 6V and the bulbs are identical, what is the value on voltmeter V1?
6V
3V
If a circuit has a current of 3A and runs for 2 min, what is the total charge that flows?
6C
3C
1.5C
360C
Potential difference is the work done per unit ...
(a)
If ammeter 3 has a current of 8A and ammeter 1 has 5A, what current is recorded at ammeter 2?
8A
3A
5A
13A
If the cell has a potential difference of 10V, What is the potential difference across the bulb in the bottom branch?
10V
5V
<10V
What is this circuit component called?
Themistor
Fixed resistor
Variable resistor
LDR
Which line represents a wire with a high resistance?
A
B
There are three resistors 10 Ohms, 25 Ohms and 100 Ohms. If they connected in series, what is the total resistance?
<10 Ohms
65 Ohms
135 Ohms
> 135 Ohms
There are three resistors 10 Ohms, 25 Ohms and 100 Ohms. If they connected in parallel, what is the total resistance?
<10 Ohms
65 Ohms
135 Ohms
> 135 Ohms
R = V / I For this equation to hold true, what must be constant?
(a)
Which has the lower resistance?
A long, thin wire
A short, thick wire
Which component does this I-V graph represent?
Diode
Thermistor
Filament Bulb
Fixed Resistor
A filament bulb's resistance increases when high current passes through it because the filament gets very...
(a)
This is the circuit symbol for a
(a)
What is the purpose of a diode?
To keep current moving clockwise
To decrease the current
To only allow current in one direction
To heat up
This is the circuit symbol for a ...
(a)
When a thermistor gets hot, its resistance...
increases
decreases
stays the same
becomes zero
This is the circuit symbol for ...
a light bulb
a diode
an LDR
a fixed resistor
When an LDR is placed in the dark, the resistance...
Increases
Decreases
Stays the same
When the temperature of the thermistor is increased what happens to the value on the voltmeter across the fixed resistor V1?
Stays the same
Increases
Decreases
Becomes zero
If the variable resistor is changed to increase its resistance, what happens to the reading on voltmeter 2?
Stays the same
Increases
Decreases
Drops to zero
A computer has a power of 0.5kW and a potential difference of 230V. What current flows through it?
2.17x10-3 A
460A
2.17 A
0.46A
A mobile phone charger has a p.d. of 12V and a current of 250mA. What is its resistance?
3 Ohms
0.048 Ohms
3000 Ohms
48 Ohms
Without units and to 3 significant figures:
What is the resistance of a device that has a power of 6MW and a current of 28A?
(a)
