UNIT 5 ELECTRICITY PRIMARY 5

Which one is NOT sources of electrical energy

• power plant

• dry cells

• tank

• solar panel

How does solar panel work

• Absorb electrical energy from the sun

• Convert light energy from the sunlight to electrical energy

• Convert light energy from the sun to kinetic energy

Which one of the following convert chemical energy to electrical energy

• Calculator

• Dynamo

• Hydroelectric Plant

• Accumulator

In parallel circuit, the light bulb shares the electric current supplied by the dry cell

• CORRECT

• INCORRECT

In series circuit, electric current flows in the same path

• CORRECT

• INCORRECT

Which one is wrong about series circuit

• Bulbs in series circuit glows dimmer

• Bulb in series circuit share the electric current flow

• When one bulb fused, the other bulb still can light up

In parallel circuit, each bulb is arranged in several branches that parallel to each other

• CORRECT

• INCORRECT

Which statement is correct based on this picture. Choose all the correct answers.

• Open switch allows electric current to flow

• Open switch breaks the circuit

• The bulb light up when switch is open

• The bulb do not light up with open switch

Which one is incorrect about the factors affecting the brightness of bulb

• The number of dry cells used

• The number of bulb

• The type of wire

• The type of circuit

Which one is correct on how to using our electrical energy wisely?

• Switch on television even we are not using it

• Using aircond 24 hours

• Avoid using refrigerator open for long time

• Turn on water heater all the time