7j1 electric circuits homework pack.doc

8/16/2019 7j1 electric circuits HOMEWORK PACK.doc

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Name……………………………………………………………………………………………..

Teacher and group………………………………………………………………………

7j Electric Circuits.

Homework Pack



7ja Live and Dangerous. Week 1 homework.

How can we use electricity safely?

Used sensibl and sa!el" elec#rici# is a

ver use!ul resource. Wi#hou# i# #his

prin#ed workshee# would no# have been

possible.

$ow man po#en#ial elec#rical ha%ards or dangerous

si#ua#ions can ou see in #his diagram&

1…………………………………………..…….'………………………………………………………

(…………………………………………………)……………………………………………………..

*…………………………………………………+……………………………………………………

7ja ,urren# a!!airs. Week ' homework



How do we measure electricity?

This is a simple

series circui#

con#aining cells

-ba##er a swi#ch" a

bulb and an

amme#er. /n

amme#er measurescurren# -in amps.

The smbol !or a bulb is

0ind ou# #he smbols !or #he remaining componen#s in

#he circui# and draw and label #hem below.

Redraw the circuit using proper electrical symbols. L5

7jb Using elec#rici# Week ( homework.

Bulb



How do we use electricity?

This plug needs

labelling. Label

i#

0ind ou#

1. Wha# is #he role o! a !use in #he circui#&

…………………………………………………………………………………………………

2. Wh does a ke##le have a 1( amp !use bu# a D2D plaeronl has a ( amp !use&

…………………………………………………………………………………………………….

…………………………………………………………………………………………………….

0ind ou#

(. Wha# gas !ills #his ligh# bulb&…………………………………………………….

). Wha# does #he !ilamen# do and wha# is

i# made !rom&

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()e *lectric cars Week 7 homework.

0hould we use electric cars?

This car uses no

petrol. !t is

powered by

electricity. !t

does not pollute

the atmosphere

but can only

tra,el -- milesbefore it needs

fully recharging.

!ts batteries are

recharged from

mains electricity.

1ains electricity

may ha,e been generated using fossil fuels2

0urely this is a

better option. 0olar

powered cars use

free sunlight to

charge therebatteries.

7j1 electric circuits homework pack.doc

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