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Worksheets

Robo 1

Total questions: 13

Worksheet time: 7mins

Name
Class
Date
1.

I am making a circuit. I dont have enough wire. Which is a good conductor to connect my circuit

a)

wood chips

b)

plastic bag

c)

newspaper

d)

copper penny

2.
What is a circuit?
a)
A constant flow of electricity 
b)
A path that a current can flow along
3.

The primary function of a fuse is to

a)

Open the circuit

b)

Protect the appliance

c)

Protect the line

d)

Prevent excessive currents from flow through the circuit

4.

Will the LED in this circuit diagram glow?

a)

No, because Positive terminal of the battery is connected to the negative terminal of LED

b)

Yes, because negative terminal of the LED is connected to the negative terminal of USB

c)

Yes, because P- terminal of the battery is connected to P-terminal of the LED and N- terminal of the battery is connected to the N-terminal of the LED!

d)

No, because its an open circuit

5.

This short circuit wire is proving as the_______________

a)

longest path with maximum resistance so the current will flow through iy

b)

shortest path with more resistance so the current will not flow through it

c)

Longest path with less resistance so the current will not flow through it

d)

shortest path without much resistance so the current will flow through it

6.

Students constructed a circuit using different-colored lightbulbs. What will happen if Switch 3 is closed and the other switches are left open?

a)

Only the white bulb will operate

b)

None of the bulbs will operate

c)

Only the white and yellow bulbs will operate

d)

Only the red and blue bulbs will operate

7.

A tact switch will provide a_______________.

When you dont press a tact switch the LED in the circuit ___________.

a)

permanent control;

glows

b)

permanent control;

doesn't glow

c)

momentary control;

doesn't glow

d)

momentary control;

glow

8.

when we switch on which LEDs glow and when we switch off which LEDs turn on?

a)

Switch on -LED 1,2,3 glow and

Switch off -LED 4,5 glow

b)

Switch on -LED 2,4, glow and

Switch off -LED 4,5 glow

c)

Switch on -LED 4,5 glow and

Switch off -LED 1,2,3 glow

d)

Switch on -LED 1,2,5 glow and

Switch off -LED 1,3,4 glow

9.

In which of the following does electricity flow?

a)

Open circuit

b)

Closed circuit

c)

None of the options are correct

10.

In series circuit, the lights are connected ________ to each other.

a)

Side by side

b)

Parallel

c)

Close by

d)

Effectively

11.

If we add more light bulbs into a parallel circuit, how will the brightness of the bulbs change?

a)

It will get dimmer

b)

It will get brighter

c)

The brightness will stay the same

d)

None of the light bulb will be on

12.
This is the symbol for a ...
a)
Wire
b)
Battery
c)
Buzzer
d)
Fuse
13.
This is the circuit symbol for ...
a)
an AC current source
b)
a DC current source
c)
a battery
d)
a single cell