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WorksheetsElectricity
Total questions: 30
Worksheet time: 18mins
Which of the following can transform electrical energy into heat?
a hair dryer
a warm sweater
a barbeque grill
the sun
Electrical energy is generated by separating electric charges.
True
False
Which is an example of how we use electricity?
Battery
Solar panels
Light bulb
Wind turbine
In a circuit diagram, this symbol represents a
switch
multimeter
battery
globe
What is electricity?
an object that electrons do not flow through
energy created by moving charged particles
when two objects repel each other
a circuit that has only one path for electricity to flow
This picture shows a circuit that is
closed
open
an insulator
static electricity
If the light bulb turns ON in a circuit, that means the circuit is
open
closed
True / False -- We should conserve electricity to reduce or bills.
True
False
True / False -- You can put anything such as a fork into electric sockets.
True
False
True / False -- All the objects we use every day need electricity to work
True
False
Look and identify the power station shown in the picture.
geothermal
solar thermal
hydroelectric
fossil-fueled
Look and identify the power station shown in the picture.
photovoltaic
fossil-fueled
geothermal
solar thermal
Look and identify the power station shown in the picture.
hydroelectric
fossil-fueled
wind
geothernal
Always ________________ electrical appliances when not using them.
turn off
turn on
destroy
replace
Use ____________ instead of air conditioners.
lamps
turn off
turn on
fans
Hang clothes to dry instead of using a _________________.
iron
washing machine
dryer
sunlight
Do not open the __________________ and freezers too often. The cool air will escape.
doors
windows
refrigerators
kitchen
Which of these materials is a good conductor of electricity?
Rubber
Metal
Newspaper
Glass
Which of these is the best example of electric energy being transformed into heat energy?
lamp
fan
telephone
toaster
Which is the best example of electric energy being transformed into sound energy?
toaster
electric blanket
television
lamp
Which is the best example of electrical energy being transformed into the energy of motion?
computer screen
digital clock
stove
fan
A ______________ is sometimes added to a circuit, it opens and closes a circuit to turn resistors on and off.
battery
resistor
current
switch
Which of these materials is a good insulator?
gold
copper
silver
plastic
