Natural Sciences and Technology Grade 5-B ... - Thunderbolt Kids

3. How is abattery dierent to a cell?
A battery is two or more cells connected end to end.
4. Draw adiagram of a simple circuit containing one cell and one
bulb so that the globe will glow.
Diagram as in workbook.
5. How is it possible that electricity that is generated at a power
station reaches a TV in ahome that is far away from the
power station? Describe how the energy is transferred from a
power station to your home.
Power station through transmission lines supported by pylons
to substation. From substation through distribution lines to
electricity box in your home. From electricity box through
wires in our homes to plug points and lights and appliances.
6. When should you NOT handle electricity or electrical
appliances?
When you are barefoot, have wet hands or in the bathroom.
7. Choose the correct answer: If someone is being shocked by
an electricity source, I should:
a. Try to pull them away from the source of the electricity.
b. Throw water on them to cool down the shock.
c. Turn o the power source as quickly as possible then
attend to them.
d. Attend to them then turn o the power source as quickly
as possible once they are safe.
Answer: C
8. Give a reason for the following statement: Do not play under
or near power lines or electric fences.
If the electricity fields are live, I can get shocked even if just
standing close to the electrical source.
Chapter 2. Energy and electricity
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