Class 2 Computer Science: Electricity for Computers
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Q1 · MCQ · 1 mark
What do computers need to switch on and work?
Q2 · FILL · 1 mark
Computers run on __________.
Q3 · SHORT · 1 mark
Why is electricity important for a computer?
Q4 · MCQ · 1 mark
Which of these devices also needs electricity to work?
Q5 · FILL · 1 mark
We connect a computer to a __________ to get electricity.
Q6 · SHORT · 1 mark
Name one thing in your home that uses electricity.
Q7 · MCQ · 1 mark
Where does the electricity come from that powers our homes?
Q8 · FILL · 1 mark
We should never touch electrical wires with __________ hands.
Q9 · SHORT · 1 mark
What should you do if you see a broken electrical wire?
Q10 · MCQ · 1 mark
What is the main source of power for a desktop computer?
Q11 · FILL · 1 mark
A laptop computer can work on __________ for some time without being plugged in.
Q12 · SHORT · 1 mark
How is a laptop different from a desktop computer in terms of how it gets power?
Q13 · MCQ · 1 mark
Is it safe to play with electrical outlets?
Q14 · FILL · 1 mark
Electricity flows through __________ to reach our devices.
Q15 · SHORT · 1 mark
Why is it important to be careful with electricity?
Q16 · MCQ · 1 mark
If the power goes off, what will happen to your computer that is currently on?
Q17 · FILL · 1 mark
A __________ box controls the electricity supply to our house.
Q18 · SHORT · 1 mark
What do we call the place where electricity is made?
Q19 · MCQ · 1 mark
Which symbol usually indicates danger from electricity?
Q20 · FILL · 1 mark
Some small devices use __________ to get power.
Q21 · SHORT · 1 mark
Can a computer work without any power source?
Q22 · MCQ · 1 mark
What should you NOT put into an electrical socket?
Q23 · FILL · 1 mark
An extension cord helps bring electricity to devices that are far from the __________.
Q24 · SHORT · 1 mark
Why do computers produce heat when they work?
Q25 · MCQ · 1 mark
Which of these is a safe way to turn off a computer?
Q26 · FILL · 1 mark
Never try to repair an electrical appliance __________.
Q27 · SHORT · 1 mark
What happens if a computer's battery runs out?
Q28 · MCQ · 1 mark
What provides backup power to some computers during a power cut?
Q29 · FILL · 1 mark
All electronic devices, including computers, need __________ to function.
Q30 · SHORT · 1 mark
Why is it good to switch off a computer properly before unplugging it?