To connect electrical devices to the primary alternating current supply (AC) in a building we use p........ and s..........
plugs and sockets
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20
What are the most common power sources?
Batteries and AC power supplies.
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20
............................conduct the electric current from the battery to the load, passing through the control elements and back to the battery.
(Insulators/ Conductors/ Switches /Fuses)
Conductors
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15
Which is the unit to measure the electric current?
Amps
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15
What do you need to use electrical current?
A c....., a p....... and something to use the electricity.
A circuit, a power source and something to use the electricity.
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monster
Reset all scores!
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star
Double points!
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fairy
Take points!
5
10
15
20
25
banana
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20
What are protons? What charge do they have?
They are in the middle of the atom (the nucleus) and they donât move. They have a positive charge.
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15
Which is the unit to measure the electrical power?
Watts
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15
The loads that convert electrical energy into heat are.......
(bulbs, buzzers, motors, resistors)
resistors
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banana
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magnet
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rocket
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lifesaver
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20
What are the five components of electrical circuit?
power sources, conductors, loads, control elements and protection elements.
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20
Which is the part of the circuit that consumes electricity?
The load
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15
Are fuses protection elements?
Yes, they are.
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15
Usually, the conductors are wires made of .................... and covered in plastic.
(plastic, glass, copper, iron, wood)