WorksheetsElectricity test
Total questions: 40
Worksheet time: 22mins
The electrical current is the movement of ............. through a conductor material
Electrons
Protons
Neutrons
Photons
Those materials that let the current flow through them are called...
conductors
insulators
generator
controllers
They supply energy to the circuit such us batteries, dynamos and cells.
Generators
Controllers
Receivers
Conductors
The function of a switch is...
to supply energy to the circuit.
to transform electric energy into light.
to open or close the circuit so the current can flow.
to protect the circuit.
They transforms the electrical energy into another typo of energy like motion, light, sound and heat.
Conductors
Generators
Controllers
Receivers
Symbol of a light bulb
Click on the symbol of a battery
Click on a protection device (the fuse)
which controller would you use to make a doorbell?
Which of the following switches would you close to light up the bulb?
Both switches
Either
None of them
Switch 1
Which of the following switches would you close to light up the bulb?
Both switches
Anyone
Noone
only one
These lamps are conected in...
series
perallel
These light bulbs are conected in...
series
parallel
What happens in a series circuit when one of the lamps is blown?
The current stops flowing so the rest of the lamps don't work.
The current keeps on flowing so the other lamps work.
Nothing
What happens in a parallel circuit when one of the bulbs is blown?
The current stops flowing so the circuit doesn't work.
The current keeps on flowing so the other lamps work.
Nothing
All the lamps and electrical appliances at home are connected in...
series
parallel
Resistance is measured in...
Amperes
Ohms
Volts
Watts
Voltage is measured in ...
Ohms
Volts
Amperes
Watts
Ampere is the unit for measuring...
Current
Voltage
Power
Resistance
Electrical current is the flow of protons through a conductor.
True
False
The Intensity of current is the energy that a battery supplies to every electron in a circuit.
True
False
Insulator materials are those that don’t let the current flow through them.
True
False
A buzzer converts electricity into light.
True
False
A battery is a control device because it rules the current in a circuit.
True
False
A switch is a generator device because it supplies the energy to the circuit.
True
False
Motor is a receiver device because it converts electrical energy into motion.
True
False
In which of the following circuits do the bulbs shine brighter?
Circuit A
Circuit B
In a series circuit the current flowing through every lamp is ...
the same
different
lower
bigger
A TV is a receiver that transforms electrical current into...
light and sound
motion
heat
nothing
Calculate the current in a circuit of forty volts when you connect a speaker with a resistance of 8 Ω.
5 A
200 A
0,5 A
40A
Calculate the resistance of a 220 V light bulb when two amperes are flowing through the circuit
440 ohms
110 ohm
10 ohms
5 ohms
The opposition that a material offers to the flow of electric current is called...
Resistance
Current
Voltage
Power
The flow of electrical charge, often electrons, through a conductor in a period of time.
Current
Resistance
Voltage
Power
The energy that a battery supplies to every electron in a circuit
Current
Voltage
Resistance
Power
The energy consumed in an electrical device in a period of time
Power
Current
Resistance
Voltage
Calculate the voltage in a resistor of one hundred ohms (Ω) when the current is two amperes.
100 volts
200 volts
200 amperes
50 volts
Between two charges of different signs appears ...
an attractive force
a repulsive force
In a series circuit the voltage of the battery is shared between the lamps.
true
false
A radiator transforms the electric energy into...
light
sound
motion
heat
This is the symbol of a ...
switch
light bulb
motor
push-button
Battery
