Unit 2: Motion

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Physical Science
Unit 2: Motion
Day 1
Daily Schedule
Go over Unit 1 Test
Lab 1 – Battery Cars
Day 2
Finish Lab 1
Postlab
Homework
Worksheet 1 – Speed
Day 3
Go over WS1
Graph the Moving Teacher
Flat Ground
Day 4
Go over WS2
Day 5
Lab 2 – Paper Airplanes
Day 6
Finish Lab 2 & Postlab
Distance/Displacement
Speed/Velocity
Day 7
Quiz
Day8
Go over WS3
Graph the Moving Teacher
Downhill
Day 9
Discuss Moving Teacher 2
WS4 – Graph Matching
Day 10
Go over WS4
Lab 3 – Story Graphing
WS5 – Once Upon a Time
Day 11
Go over WS5
Acceleration
WS6 - Acceleration
Day 12
Go over WS6
Lab 4 - Throwing Speed
Day 13
Go over Lab 3
Gravity
Day 14
Go over WS7
Review
Day 15
TEST
WS2 – Bad Day Boris
WS3 – Speed and Velocity
WS7 – DareDevil Dan
Motion Notes
Name______________________________
1
2
3
4
5
6
7
8
Physical Science
Unit 2
Lab 1: Battery Car Lab
Prelab Questions: Answer questions 1-4 before you start collecting data.
1. What two variables did we decide to study?
2. Define independent variable.
3. Define dependent variable.
4. Which variable will be your independent variable? Which variable will be your
dependent variable? Explain your choice.
In this lab, your goal is to investigate the relationship between the two variables stated
in Q1. Each group should use two different cars. After you decide how you will
measure these two variables, make sure to perform at least three trials for each car.
Use the space below to draw a data table in which you record your data. Use correct
column labels and units.
Use the grid below to draw a graph of your data. Plot points for both cars on the same
graph but be sure to indicate which points correspond to each car.
Draw a best fit line for each car.
5. What is the slope of each best fit line?
6. Do the two best fit lines have the same slope? What does this tell you about the cars?
Unit 2
Worksheet 1
Name_________________________
1 2 3 4 5 6 7 8
Constant Speed
1. Consider the position vs. time graph below for cyclists A and B.
x(m)
A
B
t(s)
5
a. Do the cyclists start at the same point? How do you know? If not, which is ahead?
b. After t=5s, which cyclist is ahead? How do you know?
c. Which cyclist is travelling faster at 3s? How do you know?
d. Are their speeds equal at any time? How do you know?
e. What is happening at the intersection of lines A and B?
©Modeling Workshop Project 2003
1
2. Consider the position vs. time graph below for cyclists A and B.
X (m)
A
B
t (s)
5
a. How does the motion of the cyclist A in this graph compare to that of A in the graph
on page one?
b. How does the motion of cyclist B in this graph compare to that of B in the graph on
page one?
c. Which cyclist has the greater speed? How do you know?
d. Describe what is happening at the intersection of lines A and B.
e. Which cyclist has traveled further during the first 5 seconds? How do you know?
©Modeling Workshop Project 2003
2
Grap
ph the Mov
ving Teacher Part I
Physsical Scienc
ce
Name
e ________
__________
_
1
2
3
4
5
6
7
8
In this lab, you will be graphin
ng the positio
on of your mo
oving teacher.
You will be
b given a sto
opwatch to re
ecord how lon
ng it takes forr the teacherr to ride a bikke to your possition.
You must record
r
two pieces of in
nformation: Your distan
nce and you
ur time
Distance
Tim e
When
n you return to
t the classro
oom, you willl share your information w
with your classsmates and ccreate a data table below
Y
You will now
w take the in
nformation from
f
above, and create a graph of d
distance vs. time (time is x axis)
Grap
ph the Mov
ving Teacher Part II
Physsical Scienc
ce
Name
e ________
__________
_
1
2
3
4
5
6
7
8
In this la
ab, you will be graphing th
he position off your movingg teacher. (aggain)
You will be
b given a sto
opwatch to re
ecord how lon
ng it takes forr the teacherr to ride a bikke to your possition.
You must record
r
two pieces of in
nformation: Your distan
nce and you
ur time
Distance
Tim e
When
n you return to
t the classro
oom, you willl share your information w
with your classsmates and ccreate a data table below
Y
You will now
w take the in
nformation from
f
above, and create a graph of d
distance vs. time (time is x axis)
Bad Day Boris – WS2
Name:______________________
distance = speed x time
1
2
3
4
5
6
7
8
1) Boris the bear is lumbering along at a constant rate of 4 m/s. If he walks for 600 seconds, how far will he travel?
d=
m
2) Because of his slow walk, Boris missed the bus. Lucky for Boris however, there is
another bus stop 1000 meters away. If the bus is arriving in 180 seconds, how fast must he run?
S=
m/s
3) Despite arriving on time, Boris was not allowed to ride on the bus because of his bear like appearance. Sadly, Boris
made the long, 8,000 m walk to work walking at a rate of 3.6 m/s. How long did it take him to get to work?
t=
s
4) After a long day at work in the coal mines, Boris began his trek home. If Boris walks 300 m in 110 seconds, how long
will it take him to make the 10000 m trip home?
t=
s
5) Finally making it home, Boris realizes that he forgot his keys at work. In a fit of sheer frustration, he yells at the top
of his lungs (sound travels at 340 m/s). If his uncle Demetri heard the roar 3.4 seconds later, how far does Boris live
from Demetri’s house?
d=
m
6) Jumping onto his skateboard, Boris starts heading towards Demetri’s house at a constant 7 m/s. While 25 meters
from an intersection moving north, another car approaches the intersection traveling east at 20 m/s, from 50 meters.
Will Boris get hit by a car to finish his terrible day? Or will he narrowly escape death to be comforted by family?
Lives / Dies
Pape
er Airplane
e Lab
Physsical Scienc
ce
Name
e ________
__________
_
1 2 3 4 5 6 7 8
In this lab, your goal is to make
e the slowe
est possible paper airp
plane. You w
will be crea
ating 3
differen
nt paper airrplanes to test,
t
and yo
ou must the
en measure
e the speed
d of your pllane.
Materiials: 3 pie
eces of pap
per, string,, metersticck, stopwattch
Using
g the 3 piec
ces of paper (not this lab), creat e three diffferent paper airplane
es.
**B
Be creative
e with your designs**
Afte
er you have
e finished crreating, you must com
me up with a method to measure
e the speed
d of your
pape
er plane. In
n the space
e below, wrrite out you
ur plan for measuring the speed with your m
materials.
You will be me
easuring eac
ch plane’s speed 3 tim
mes. This m
means you w
will calcula
ate speed 9 times.
Plan
ne 1
Plan
ne 2
Plan
ne 3
Worksheet 3
Speed and Velocity
Name___________________________
1 2 3 4 5 6 7 8
1. Explain the difference between distance traveled and displacement.
2. Explain the difference between speed and velocity.
3. While out trying to find water, Jack decides to take data of his position over time in order to
keep track of where he has been. The data is shown in the graph below.
a. What is Jack’s total distance traveled?
b. What is his displacement?
c. At what time is Jack back at his starting point?
What is his velocity at this point?
d. Describe, in complete sentences, Jack’s motion during his search for water.
Make sure to finish the back page as well.
4. From the data below, construct a graph of position vs. time using the space provided.
Answer questions a-d using your graph.
Time (s)
0
1
2
3
4
5
6
7
8
9
Position (m)
0
2
4
4
7
10
10
10
5
0
a. During what time interval(s) is the velocity of the
object zero?
b. What is the velocity of the object between t=7s and
t=8s? What is the speed of the object during this interval?
c. What is the object’s displacement over the entire interval?
d. What is the total distance the object travels?
2
Graph Matching – WS 4
Name ___________________
1 2 3 4 5 6
Physical Science
7
Directions: The following d vs. t graphs were made of a car’s motion. To the right of each graph choose the logical
distances covered by the car as shown by the graph for the time periods indicated. For the first five second choices
you will have to decide whether the car was moving or not. For the last five seconds you will have to decide whether
the car maintained it’s motion or if it increased or decreased the rate at which it was covering distance. Then choose
what a driver would have to do to make such a graph.
d vs. t graphs
0
0
0
0
0
5
5
5
5
5
10
10
10
10
10
d first 5 s
d last 5 s
a) 0 m
b) 20 m
a) 0 m
b) 10 m
c) 20 m
d) 30 m
a) car in park
b) drive - cruise control
c) drive - step on the gas
d) drive - step on the brake
e) reverse - cruise control
f) reverse - step on the gas
a) 0 m
b) 20 m
a) 0 m
b) 10 m
c) 20 m
d) 30 m
a) car in park
b) drive - cruise control
c) drive - step on the gas
d) drive - step on the brake
e) reverse - cruise control
f) reverse - step on the gas
a) 0 m
b) 20 m
a) 0 m
b) 10 m
c) 20 m
d) 30 m
a) car in park
b) drive - cruise control
c) drive - step on the gas
d) drive - step on the brake
e) reverse - cruise control
f) reverse - step on the gas
a) 0 m
b) 20 m
a) 0 m
b) 10 m
c) 20 m
d) 30 m
a) car in park
b) drive - cruise control
c) drive - step on the gas
d) drive - step on the brake
e) reverse - cruise control
f) reverse - step on the gas
a) 0 m
b) 20 m
a) 0 m
b) 10 m
c) 20 m
d) 30 m
a) car in park
b) drive - cruise control
c) drive - step on the gas
d) drive - step on the brake
e) reverse - cruise control
f) reverse - step on the gas
15
15
15
15
15
driver’s actions
8
Lab 3 - Story Graphing
G
Physiical Science
Name
e ___________
____________
_
1 2 3 4 5 6 7 8
ab, you will be
e moving you
ur body to maatch a distancce vs. time grraph.
In this la
Part I - Setup
1- To
o begin, your lab group will need to con
nnect your motion
m
detecto
or to the com
mputers in the
e room.
2- Wh
hen your equipment is corrrectly plugge
ed in, you willl then open tthe logger prro software on
n your compu
uter
(start men
nu>all program
ms>vernier so
oftware>logge
er pro)
3- In the logger prro program, open
o
the file 01b graph matching (file>>open>physiccs with vernie
er>01b graph matching)
4- Ha
ave your teac
cher check your
y
compute
er to confirm
m that you arre correctly sset up before
e you move o
on.
ps
Part II – first step
You n
now have a computer grap
ph that looks like the grap
ph at right.
Prediict how you will
w walk to create this sam
me graph. Be
e specific.
Now
w, using the motion
m
detecttor, recreate the graph on
n the screen.
Originall Distance vs Time
T
Graph Shape
S
H
How did you w
walk to create this? BE SPE
ECIFIC!
Teache
er
Initialss
allenge
Part III – The Cha
For tthe challenge, you must first open “01a
a graph matching” (file>op
pen>physics w
with vernier>
>01a graph ma
atching)
When
n you have th
he correct file
e open, you will
w only see a blank graph
h. To receive your challenge click analyyze>graph
matcch (analyze is on the top in
nformation ba
ar). You may click this sevveral times until you have
e a graph thatt you like.
Complete
e the table b elow
Originall Distance vs Time
T
Graph Shape
S
H
How did you w
walk to create this? BE SPE
ECIFIC!
Teache
er
Initialss
Create a new graph and complete again!
How did you walk to create this? BE SPECIFIC!
Original Distance vs Time Graph Shape
Teacher
Initials
Try and choose a really hard one this time.
How did you walk to create this? BE SPECIFIC!
Original Distance vs Time Graph Shape
Teacher
Initials
Keep Going!
Original Distance vs Time Graph Shape
How did you walk to create this? BE SPECIFIC!
Teacher
Initials
Original Distance vs Time Graph Shape
Just one more time…
How did you walk to create this? BE SPECIFIC!
Teacher
Initials
Once
e Upon a Time…
T
Name
e ___________
____________
_
1 2 3 4 5 6 7 8
Physiical Science
Distance
a to create a story where
e the action matches with
h the motion depicted on the graph.
Usingg the graph at right, you are
Your story should be at least 2 paragraphs in
i length, wriitten on this sheet. Be cre
eative; try to make your story
enterrtaining to re
ead. Your storry must be sc
chool approprriate.
T
Time
Physsical Science
Unit 2 – WS 6
Accelerration
Name
e___________
____________
_
1 2 3 4 5 6 7 8
1
1. What is the acceleration of a car that trravels in a sstraight line at a consstant speed
d?
2
2. While drriving a carr, what are two ways you
y could ccause the ccar to accelerate?
3. A rollercoaster rapidly
r
pickks up speed
d as it rolls down a slo
ope. As it
sttarts down the slope, its speed is 4 m/s. Th
hree second
ds later, itss speed is
22
2 m/s. Wha
at is its accceleration?
4
4. For the situation below, draw
w a qualitattive graph o
of position vs. time.
vi=0
x
0
25
50
t
5
5. For the situation below, draw
w a qualitattive graph o
of position vs. time. A
Assume the ball does
not expe
erience any
y change in
n velocity while
w
on the
e flat part o
of the track.
vi=0
x
0
25
50
5
t
6
6. When hiit by Bubba
a Watson, a golf ball can
c reach a speed of 8
87 m/s in 0
0.005 s. What is the
accelera
ation of the
e golf ball?
7. The data set below was taken for a wheel that started at rest rolling down a hill. Use the
data to create a graph in the space provided.
t
x
(s)
0.0
1.0
2.0
3.0
4.0
5.0
6.0
(cm)
0.0
5.0
20.0
45.0
80.0
125.0
180.0
a. What is the average velocity of the wheel after two seconds? What is the average
velocity of the wheel after four seconds?
b. What is the acceleration of the wheel from t=2s to t=4s?
Speed of Vertical Throw Lab
Name:______________________
Physics 432
1
2
3
4
5
6
7
8
In this lab, we will be determining your throwing speed using physics.
Procedure
Before going outside, you will need the following: stopwatch, ball, and this worksheet to record your own data.
1) While outside, give yourself room so that you will not bump into another group while throwing your ball.
2) As hard as you can, throw the tennis ball straight up. Your goal should be to have the ball land exactly where it was
thrown from. Have your lab partner measure the time that the ball spent in the air. Record your times below.
Trial 1
Trial 2
Trial 3
Average Time
3) Help your lab partner record times for their throw. When your whole group has finished timing, return the ball and
stopwatch to your teacher.
______________________________________________________________________________________________________
Analysis
1) In the box at right, fill in any known information. Do not
perform any calculations yet.
2) Now, use the space below to calculate the other unknown
variables.
Time=
Velocity=
Acceleration=
3) At what velocity did you throw the ball?
Time= 0 seconds
Velocity=
Acceleration=
4) At what velocity did the ball hit the ground?
[show calculations to prove it!]
Post lab questions
During the flight of your ball, indicate when:
1) your velocity was at a maximum
2) your distance was at a maximum
3) your acceleration was zero
4) there was a positive velocity and a negative acceleration
5) there was a negative velocity and a positive acceleration
6) Is it possible to accelerate in one direction while moving in another? Explain.
7) Justine the Jock threw the ball for an air time of 6.5 seconds. At what speed did she throw the ball?
8) Leon the delicate threw the ball for an air time of 1.3 seconds. At what speed did he throw the ball?
Dare
eDevil Dan
Name
e ___________
____________
_
1 2 3 4 5 6 7 8
Physiical Science
g
airplane, Dan stepped
d out a windo
ow. If his inittial speed wass 0 m/s, how
w long did it
1- Wh
hile flying in a perfectly good
take him to reach
h 50 m/s?
g his parachute, Dan decid
ded that he was
w being too safe. To fix this, Dan cutt off his own p
parachute so
2- Affter deploying
that he can freely
y fall again. Iff his initial sp
peed was 5 m/s,
m
how longg did it take h
him to reach 5
50 m/s?
an again deployed his para
achute and la
anded on a mo
ountain. Whille leaning ove
er a cliff to ssee the bottom, Dan fell
3- Da
off th
he mountain. If his initial velocity was zero, how fa
ast is dan travveling after 22.5 seconds?
emembering his
h third emergency parac
chute, Dan de
eployed his paarachute and narrowly esccaped injury. While
4- Re
floatting down, Da
an decided to once again cut
c his parach
hute to land iin the water below. His in
nitial speed w
was not 0. If
ok him 4 seco
onds to reach 63 m/s, wha
at was Dan’s initial
i
speed??
it too
b
fill in the missing details
d
about dan jumpingg off a mounta
ain. Show you
ur work.
5- In the picture below,
Time: 1 seco
ond
Ve
elocity:
Accceleration:
Time
e: 2 second
ds
Velo
ocity:
eleration:
Acce
Time: 3 seco
onds
elocity:
Ve
Accceleration
n:
Time:: 4 seconds
Velocity:
eration:
Accele
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