7j1 electric circuits homework pack.doc
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8/16/2019 7j1 electric circuits HOMEWORK PACK.doc
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Name……………………………………………………………………………………………..
Teacher and group………………………………………………………………………
7j Electric Circuits.
Homework Pack
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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
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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
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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.
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