i cti on The r e a r e ma n y types of fr i ction R ol l in g friction Sliding fr i ct i on Sta ti c fr i ct i on fluid fri ction Slidi ID: 688133
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Slide1
Th
e
F
o
rce of Friction
There are many types of frictionRolling frictionSliding frictionStatic frictionfluid friction
Slidi
n
g
F
r
i
ctionSlide2
Is
friction
occu
r
ring
w
h
e
n
yo
u
ar
e
playin
g
in
d
oo
r
soc
c
er?
Expl
a
i
n
you
r
answer.
Y
es
,
betw
ee
n
the
ball
an
d
groun
d,
ball
an
d
fo
ot,
feet
and
grou
n
d,
ball
and
net…
and
th
e
list
goes
on!
Fricti
o
n
alway
s
cause
s
3
th
i
ng
s
to
o
c
cur
:
(
USE
THE
HINTS
A
T
THE
BOT
T
O
M
T
O
HEL
P
!)
Pr
od
u
ce
s
heat
Slows
o
bjects
down
W
ea
r
s
d
own
surfaces
Rub
your
h
a
nds
toge
t
her…
wh
a
t
do
you
f
e
el?
Check
the
s
ol
e
s
o
f
you
r
shoes
,
w
ha
t
d
o
y
o
u
see?
Wh
a
t
d
o
bra
k
e
s
d
o
f
o
r
a
bike
an
d
c
ar?Slide3
Friction
Watch the following videos:
http://science360.gov/obj/video/89c70f56-8885-46a0-9997-82ebfa025127/science-winter-olympics-science-friction
http://www.discovery.com/tv-shows/mythbusters/videos/phone-book-friction.htm
http://www.teachertube.com/video/friction-27724Slide4
What
d
o
al
l
o
f
thes
e
activiti
e
s
hav
e
i
n
common?
Rolling
FrictionSlide5
Rolling
Friction
Rolling
f
ri
c
tion
i
s
friction
that
occu
r
s
betwe
e
n
surface
s
i
n
motio
n
i
n
wh
ich
on
e
o
f
t
h
e
s
urface
s
i
s
a
whee
l
,
roll
e
r,
o
r
bal
l.
Examp
les:
Ri
d
i
n
g
a
b
i
k
e
–
tire
s
and
ground
B
o
w
l
i
n
g
–
ba
l
l
an
d
l
a
neSlide6
What
d
o
y
o
u
notice
a
b
ou
t
a
l
l
o
f
thes
e
i
tems?Slide7
Static
Friction
Static
f
ri
c
tion
i
s
friction
that
occu
r
s
when
the
surface
s
i
n
contac
t
ar
e
at
rest
(
no
t
i
n
moti
o
n).
Examp
les:
A
boo
k
rest
i
n
g
o
n
a
desk.
A
potte
d
p
l
an
t
sittin
g
o
n
a
si
d
ew
a
lk.Slide8
What
d
o
al
l
o
f
thes
e
activiti
e
s
hav
e
i
n
common?
Shu
f
fle
b
oard
Slidin
g
Friction
Ice hockey
Shuffle board
curlingSlide9
Sliding
Fric
t
ion
Sl
i
ding
friction
i
s
friction
that
occu
r
s
when
s
ol
i
d
surface
s
slide
ove
r
o
n
e
an
o
ther.
Examp
les:
Wr
iti
n
g
–
pe
n
ci
l
po
i
n
t
and
paper
Comb
i
n
g
you
r
ha
ir
–
sur
f
ace
o
f
com
b
an
d
st
r
an
d
s
o
f
ha
i
r
ROLLING
friction
i
s
usuall
y
L
E
SS
than
slid
in
g
friction.Slide10
What
d
o
al
l
o
f
thes
e
activiti
e
s
hav
e
i
n
common?
Flui
d
Friction
Hang
Glid
i
ng
W
i
n
d
Sai
l
ing
Water skiing
air hockeySlide11
Fluid
Friction
Fluid
fri
c
tion
i
s
friction
that
occu
r
s
when
object
s
move
acros
s
o
r
t
h
rough
a
f
lu
id.
Examp
les:
S
w
immin
g
–
swim
m
er’s body
an
d
surfac
e
o
f
w
a
ter
G
r
eas
i
n
g
a
sque
a
k
y
do
or
h
i
nge
–
no
w
th
e
2
h
i
ng
e
part
s
are
sl
i
d
i
n
g
acros
s
a
flu
i
d
(t
he
grease)Slide12
Check
fo
r
Und
e
rstanding
: discuss with your group. You do not have to write these down.
Wh
i
c
h
ty
p
e
o
f
fri
c
tion
i
s
it?
Pull
i
n
g
a
wagon.
Swimming
i
n
th
e
oc
e
an.
Push
i
n
g
a
bo
x
acr
o
s
s
th
e
floor.
A
va
s
e
s
i
tti
n
g
o
n
a
tab
l
e.
Rid
i
n
g
a
bi
k
e.
A
sea
g
ul
l
soa
r
in
g
throug
h
th
e
air.Slide13
Fluid
Frict
i
on
Air
resi
s
tance
i
s
a
n
example
o
f
f
l
uid
friction
cause
d
b
y
the
part
i
cles
th
a
t
mak
e
u
p
a
i
r.
I
t
cause
s
a
f
a
l
ling
objec
t
to
slo
w
down.
Examp
les:
Throw
i
n
g
a
frisbee
–
f
ris
b
e
e
is
sl
o
wed
do
w
n
b
y
a
ir
resistance
Sk
y
d
i
vi
n
g
–
para
c
hut
e
is
sl
o
wed
do
w
n
b
y
a
ir
resistanceSlide14
Fluid
Friction
cont
.
FLUID
fric
t
io
n
i
s
us
u
al
l
y
LES
S
tha
n
sli
d
in
g
fri
c
tio
n
.
Lubr
i
can
t
s
cha
n
g
e
s
l
id
i
n
g
fri
c
tio
n
t
o
flu
i
d
frictio
n
.
Lubri
c
ant
s
ar
e
sl
i
ppe
r
y
su
b
st
a
nc
e
s.
G
r
ease
for
m
ot
or
parts
in
a
c
ar
Co
o
k
ing
o
i
l
so
fo
o
d
wo
n
’
t
st
i
ck to
b
otto
m
of
p
an
W
ax
on
b
otto
m
of
s
u
r
f
b
o
ard
to
m
ake
i
t
m
o
v
e
faster
thr
o
ug
h
waterSlide15
Write your name in the upper right hand corner of
a piece of
paper (NOT IN YOUR NOTES)
and number from 1-10. You will be writing what type of friction the slide is showing. After the 10 slides the answers will be shown and you need to check your
answers and then turn it in.
.Slide16
Which
type
of
friction
is this picture anexample of?Slide17
Which
typ
e of
friction
is
this picture anexample of?Slide18
Which
typ
e of
friction
is
this picture anexample of?Slide19
Which
typ
e of
friction
is
this picture anexample of?Slide20
Which
typ
e of
friction
is
this picture anexample of?Slide21
Which
typ
e of
friction
is
this picture anexample of?Slide22
Which
typ
e of
friction
is
this picture anexample of?Slide23
Which
typ
e of
friction
is
this picture anexample of?Slide24
Which
typ
e of
friction
is
this picture anexample of?Slide25
Which
typ
e of
friction
is
this picture anexample of?Slide26
Write down how many you got wrong and explain why you got them wrong and what the correct answer is. When this is completed, turn it into the basket.
Rolling
Fluid
SlidingStaticSliding
Fluid
RollingStaticSlidingrollingAnswers:Slide27
What
kind
o
f
friction
i
s
oc
c
urring
betwee
n
a
pe
n
ci
l
and
des
k
top
w
he
n
yo
u
fl
ic
k
the
pen
c
i
l?
Which
ha
s
mor
e
fric
tion?
S
lid
in
g
o
r
Fluid
friction?
Which
affec
t
o
f
friction
ca
n
yo
u
fee
l
o
n
a
tire
afte
r
yo
u
r
od
e
it
fo
r
2
0
minutes?
F
r
iction
fro
m
the
rubb
e
r
sole
s
o
f
you
r
shoe
s
an
d
the
f
loor
al
low
s
yo
u
to
d
o
w
ha
t
w
he
n
playing
bas
k
etbal
l
o
r
indoor
so
c
ce
r
?
(an
affec
t
o
f
friction)
Because
o
f
wh
ic
h
affec
t
o
f
friction
make
s
yo
u
hav
e
to
sharpen
you
r
penci
l
afte
r
writing
with
it
fo
r
a
while?
ro
l
l
i
ng
heat
Slow down and stop
W
e
a
r
i
ng
away
sliding
Discuss each question with your group and hit enter to reveal the answer.Slide28
R
e
f
l
ect
ion Questions
Reflecting what you’ve done:Write answer to the following question in your notebook after your notes you just took:1. What have you learned about friction in this lesson? In your science notebook, summarize in 2 paragraphs (at least 4 sentences each) what you have learned about the force of friction.