NEW
Font size
WorksheetsELECTRIC CURRENT & ITS EFFECT
Total questions: 15
Worksheet time: 8mins
A device that converts chemical energy into electrical energy is call a
battery
conductor
parallel circuit
flashlight
Most circuits include a device that opens and closes the circuit. This device allows you to turn a light bulb on and off. This device is a
computer
wire
switch
flashlight
Home circuits have a safety device that opens or breaks the circuit when it overheats. This device is called a
flashlight
circuit breaker
conductor
simple circuit
If too much electric current passes through a circuit, the wires can
make batteries
cool down
conductor
overheat
Why is a battery important in an electrical circuit?
As a source of energy.
As a path for electricity to flow through.
As a connector to connect all parts of a circuit.
Why must parts of a circuit be properly connected before the bulb can light up?
To ensure that the bulb can light up.
To ensure that the battery can produce light in a closed circuit.
To ensure that electric current can flow through the closed circuit.
Look at the circuits in the diagram. In which circuit will the bulb be brighter?
Circuit A
Circuit B
Both circuits, the bulbs will have the same brightness.
Which of the following is most ecofriendly?
Incandescent bulb
LED
CFL
Thin metal wire inside the electric bulb
Fiber
Terminal
Filament
LED stands for
Light Emission Diode
Light Emitting Diode
Light Electric Diode
An electric current is made up of _____ charged electrons
neutral
negative
positive
balanced
