Question

A device that is used to break an electric circuit is called a __________________.

b. When a cell is connected in a circuit, circuit flows from the __________________ terminal to the ________________________ terminal in a circuit.

c. An electric cell converts chemical energy stored in it into ___________________ energy.

d. Materials which allow the electricity to pass through them are called _____________________.

e. The handles of an electrician’s screwdriver are made up of _________________________.​

Answer 1

Answer:

1. electric switch
2. positive, negative
3. electrical
4. conductor
5. rubber(insulator)

Explanation:

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Answer 2

Answer:

(a) A device that is used to break an electric circuit is called electric switch.

(b) An electric cell makes current in a circuit flow from the positive terminal to the negative terminal.

(c)A battery converts chemical energy to electrical energy during discharging and back to chemical during charging.

(d)the flow of electricity is called current. Metals are generally very good conductors, meaning they let current flow easily. Materials that do not let current flow easily are called insulators. Most nonmetal materials such as plastic, wood and rubber are insulators.

(d)the screwdriver use by the electrician have a plastic or a wooden handle because the front portion of screwdriver is made up of iron which is a good conductor of heat and electricity,so to prevent electric shock the handles are made of non metals such wood and plastic as they are insulator.

hope it helps you!!