Class 6 Science Chapter 12 MCQ Online Test for 2020-2021
|Chapter: 12||Electricity and Circuit|
|Contents:||MCQ Online Test with answers|
Class 6 Science Chapter 12 MCQ Test with Answers
The filament of an electric bulb is made of a thin wire of:
A torch bulb will normally work on 4.5-volt electricity is connected to domestic electricity supply of 220 volts. Which of the following will happen to this torch bulb?
[A]. It will grow very brightly
[B]. It will grow very dimly
[C]. It will not glow
[D]. It will get fused
Filament of a torch bulb is:
[A]. A metal case
[B]. Metal tip at the centre of the base
[C]. Two thick wires
[D]. A thin wire
Consider the following statements and choose the correct one:
[A]. Although the electricity is very useful but it can also be very dangerous
[B]. If electric wires and electrical appliances are handled carelessly, then a person get can get electric shock which may cause severe burns and even death.
[C]. We should never use electricity from power points are sockets in our home for school for performing science experiments because it is very unsafe and dangerous to do so.
[D]. All the above
Read the following sentences carefully, and choose the incorrect one:
[A]. We can use an electric cell to get electricity that is safe for performing experiments.
[B]. A single electric cell usually provides only 1.5 volt of electricity whereas the electricity from power stations which is used in our homes is at 220 volts.
[C]. Cells and batteries are available in the market in different shapes and sizes depending on their use.
[D]. None of the above
An example of non-conductor of electricity is a:
[C]. Rubber gloves
[D]. Metal spoon
Electricity flows in an electric circuit which is:
One of the following is needed to run a radio. This is:
Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?
[A]. We can make a simple switch by using a small sheet of thermocol.
[B]. The circuit is open and hence low current can flow.
[C]. The safety pins and wires all are made of metal and hence they are conductors of electricity.
[D]. All the above.
In the last year board examination, Rahul were asked a question where he had to choose the statement which was/were correct? Will you be able to answer this question?
[A]. Those materials which allow electric current to pass through them are called insulators.
[B]. Rubber, air, water, wood, plastics (like polyethylene, PVC), asbestos all are examples of insulators.
[C]. A candle (made of wax), thermocol and glass bangle are non-insulators.
[D]. None of the above
Shekhar appeared in class test but he confused to know the incorrect statement. Would you help him to know that?
[A]. The positive terminal of electric cell is marked plus (+).
[B]. The negative terminal of the electric cell is marked minus (-).
[C]. We should not join the two terminals (positive and negative) of a cell directly by a wire.
[D]. The electric cell is a cylindrical device having a small metal cap on one side which is negative terminal.