Electric Circuits - SEC 2nt
There are 10 MCQ questions in this quiz. Good luck!
- 1.You are given a light bulb and some wires.What else is needed to form a complete circuit so that the light bulb can light up?
- A.
A switch
- B.
A cell
- C.
A resistor
- D.
A piece of iron
- 2.
If the switch in the following diagram is open, what will happen to the light bulb?- A.
It will light up
- B.
It will be brighter than normal
- C.
It will be dimmer than normal
- D.
It will not light up
- 3.Which list contains one conductor and one insulator of electricity?
- A.
Plastic, glass
- B.
Gold, aluminium
- C.
Iron, wood
- D.
Copper, zinc
- 4.Which of the following is an example of electrical conductor?
- A.
Silver fork
- B.
Eraser
- C.
Plastic ruler
- D.
Rubber band
- 5.When a switch is closed, it means that
- A.
Electricity cannot flow through the switch
- B.
Electricity can flow through the switch
- C.
The circuit is broken
- D.
The switch is turned off
- 6.
In which of the following situations will light bulb A light up only?
- A.
Close switch a, b and c
- B.
Open switch a, b and c
- C.
Close switch a and b, and open switch c
- D.
Close switch a and c, and open switch b
- 7.
A simple circuit is made up of a cell, a light bulb and some wires. The light bulb lights up normally.What can you do to increase the brightness of the light bulb?
- A.
Add one more cell in series to the circuit
- B.
Add one more light bulb in series to the circuit
- C.
Add a switch in series to the circuit
- D.
Add a resistor in series to the circuit
- 8.What will happen if we add too many cells to the circuit in Question 7?
- A.
The cells may explode
- B.
The cells will stop working
- C.
The light bulb may burn out
- D.
The light bulb will get too bright to see
- 9.
Which component does the following symbol represent?
- A.
Cell
- B.
Wire
- C.
Switch
- D.
Resistor
- 10.
What does the following symbol represents?
- A.
An open switch
- B.
A closed switch
- C.
A piece of broken wire
- D.
Two cells
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