science electricity gd 4

a. Name the component of the circuit numbered 1,2,3,4 and 5!

b. what is the function of component numbered 1?

c. why daes the lamp light up in this circuit?

Answer explanation

a. 1. battery/cell, 2. lamp bulp, 3. lamp holder, 4. switch, 5. battery holder

b. to provide electricity (terminal)

c. cell push electricity to the circuit

a. what is isolator? give 2 example!

b. what is conductor ? give 2 example!

Answer explanation

a. Isolator is material that not allow electricity passed through it. example: plastic, paper

b. Conductor is material that allow electricity passed through it. example: copper , steel

Pure water can conduct electricity. Distilled water cannot conduct electricity. Why does distilled water cancannot conduct electricity?

Answer explanation

because distilled doesn't have salt

_______________ is the unit to measure the strength of electricity.

Answer explanation

volt

the strength of a supply of electricity was _________

Answer explanation

voltage

The part of electrical appliances that let electricity pass through from the power supply to electrical stuff is called ______

Answer explanation

plug

Mention 5 thing that we have to do to avoid electric shock !

Answer explanation

1. never touch a bare electric wire

2. dont touch electric appliance using wet hand

3. dont pull out the plug from the socket

4. never put electicity wire under carpet

5. cover the wire using plastic

______ is the electric appliance for turn the electricity on and off

Answer explanation

switch

what is electric shock?

Answer explanation

electric shock is when the electricity flow through our body.

There is a circuit with 1 lamp and 1 cell. if add more 1 cell , what happen with the brightness of the lamp?

Answer explanation

the lamp glow more brightly