Summary AQA A-Level Physics Revision Notes - Mechanics & Materials

Subject: PHYSICS AS
Topic: MECHANICS 4 1
Revision Notes Summarise Trigger Word
The turningeffect byline
p roduced
distancebetweenthe
actingat aperpendicular
aforce MOMENTS COUPLES
pivotandthe ofactionoftheforce
TACWM Town conservation M Fled
Nomomentcausedbypivot
couplesactinoppositedirections theirlinesofactiondonotmeet


Thepointthroughwhichasingleforceonthebodyhasnoturningerect CENTREOFmass
tiated




d LOOK ATAxis MOTIONGRAPHS vo

410 DIT VIT
Thegradientrepresents
it
the story
MOTIONGRAPHS away
fromstart
cops ve
weenlineandxaxis

speed velocity


APHs a away
faggative
Etienneandx axis 18off
it totaldisplacement

it
of acceleration


d µ a tostop
911 1
veins En ases

a eran.in
MOTIONGRAPHS I tostart
const
Ypres




di MOTIONGRAPHS a tostart
ve
Hi
constant
to
acceleration start




it v

, Subject: PHYSICS AS
Topic: MECHANICS 4 1
Revision Notes Summarise Trigger Word
drag PARACHUTISTSCENARIO
1,199 s the Ear
asaccelerationdecreases
3whenw dragno Fr noacceleration terminalvelocity
IwLdraglower Stasi 8
downwardsdeceleration
9,9149 faeries ifyyf
5 terminalvelocity ftp.qq
6rateof decelerationdecreaseswcarag Landina

momentum

Elastic bounce KE
conserved p MV
away TMB Tma 0 mu my MV Malz
Explosive move

Frαrateofchange
ofmomentum
Impulse changein incIby For
In
momentum impact
underftgraph
area KE
safetyfeatures increaseimpactto rateof
time decrease of
c hange momentum reduce size roadsafety
on air
force personseatbelts bags
of comparison c rumple
zones
Fair requirements

1samevelocity
2same
test type
vehicle
3samedummytype
acrashbarrier
thatcannotbe
moveddeformed
elastic
ensure c ollision