# 09.16.19.U1.L23 ```What’s Your Headline?
Name__________________________
Period________
09.16.19
Catalyst/Do Now
Solve the table using the function below, then graph the data.
Find the slope, then the position when x=10.
T (sec)
-1
0
1
2
3
Use the graph to determine the average speed away
P (m)
3
2
1
0
-1
Shown is a multiple flash photo of two cars taken in
equal time intervals.
What is the average speed of the cars when t=1 and
t=6? (each hash mark equals 1 meter)
Top car ______________
Away from the origin: _____________
Acceleration Worksheet
Which path was fastest? _____________
Bottom car ______________
Name________________________
Period________ Date___________
Equations:
Acceleration = Final velocity – Initial velocity
Time
Time = Final Velocity – Initial Velocity
Acceleration
Final Velocity = Acceleration * Time + Initial Velocity
How long will it take a car to go from a complete stop
How long will it take a car to accelerate from 15.2 m/s to
Problems: I n order to receive credit for this2 worksheet you M UST show your work using the GUESS
to 44 km/hr if they are accelerating at 5 km/hr ?
23.5 m/s if the car has an average acceleration of 3.2
Method. You can use a calculator but you must show
all of the steps in the spaces provided.
m/s2?
1. A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope, its speed is 4
m/s. But 3 seconds later, at the bottom of the slope, its speed is 22 m/s. What is its average acceleration?
Mr. Harrington – [email protected]
1
Name__________________________
Period________
09.16.19
Exit Ticket
Draw a velocity versus time graph for the distance time graph from the Reason and Explain page.
Draw a velocity versus time graph for the distance time graph from the Represent and Reason 2.0 page.
Mr. Harrington – [email protected]
2
Name__________________________
Lesson 14: Putting I t
1 Reason and Explain
Period________
All Together
Reason and Explain
graph below records the position versus time for an object.
The graph below shows the distance vs time for an object.
09.16.19
Describe the motion in words.
________________________________
________________________________
________________________________
________________________________
________________________________
________________________________
________________________________
________________________________
________________________________
!
Create
motion
Describe
the amotion
indiagram
words. for this situation.
l---------l---------l---------l---------l---------l---------l---------l---------l---------l---------l---------l---------l
Create a motion diagram for this situation
Place the correct time interval next to the correct
Rank the motion during the time intervals in order
description.
from fastest
to slowest.
During what time interval(s) is the object at rest? Traveling at constant
velocity?
Accelerating?
When is the object at rest? ______________
0-10s _______
10-20s _______
When is the object traveling at a constant velocity?
30-40s _______
Rank ______________
the motion during the time intervals in order from fastest to slowest.
50-60s _______
When
is
the
object
accelerating?
______________
0-10 s, 10-20 s, 30-40 s, 40-50 s, and 50-60 s?
Find the average velocity for:
Find the average velocity for:
• The first
s?40 seconds.
• The first 50 s?
The40
first
• The
first
s?
The
first
5060
seconds.
40-50s _______
The first 60 seconds.
Draw what you believe the velocity versus time graph should look like.
PUM | Kinematics | Lesson!14:!Putting!It!All!Together 65
Mr. Harrington – [email protected]
3
Name__________________________
If you have
a motion detector, use it and your own motion to create a graph that matches the one above.
Discuss why you were or were not able to reproduce this exact graph.
Period________
09.16.19
Represent and Reason 1.0
14.2 Represent
andbelow
Reasonshows the distance vs time for an object.
The graph
Describe the motion in words.
________________________________
________________________________
________________________________
________________________________
________________________________
________________________________
________________________________
________________________________
________________________________
!
DescribeCreate
the motion
in words.diagram for this situation.
a motion
Create a motion diagram
for this situation
l---------l---------l---------l---------l---------l---------l---------l---------l---------l---------l---------l---------l
During what
time
interval(s)
the object
accelerating?
zero? ObjectWhat
at rest?isTraveling
at
Place
the
correctistime
interval
next toAcceleration
the correct
the velocity
of the object at the following
constant velocity?
description.
When is the object accelerating? ______________
10s _______
15s _______
What is the velocity of the object at the following clock readings? Explain how you know.
When
is20
the
object’s
acceleration
is zero?
10
s, 15 s,
s, 25
s, 45 s, and
55 s?
Calculate
the acceleration of the object for the following time intervals:
______________
20s _______
25s _______
45s _______
55s _______
0-10 s, 10-20s, 20-40 s, 40-50 s, and 50-60 s.
When is the object at rest? ______________
When is the object traveling at a constant velocity?
M | Kinematics | Lesson!14:!Putting!It!All!Together
______________
opyright 2014, Rutgers, The State University of New Jersey.
Calculate the acceleration of the object at the following time intervals (use scratch paper):
0-10s
10-20s
20-40s
40-50s
50-60s
Mr. Harrington – [email protected]
4
Name__________________________
Homework
Period________
09.16.19
Represent and Reason 2.0
epresent and Reason
aph below records the position versus time for an object.
The graph below shows the distance vs time for an object.
Describe the motion in words.
________________________________
________________________________
________________________________
________________________________
________________________________
________________________________
________________________________
________________________________
________________________________
!
Createofa the
motion
diagram
for this situation.
e the motion
object
in words.
a motion diagram l---------l---------l---------l---------l---------l---------l---------l---------l---------l---------l---------l---------l
what time interval(s) is the object accelerating?
Place the correct time interval next to the correct
description.
what time interval(s) is the object at rest?
When is the object accelerating? ______________
What is the average velocity of the object at the
following time intervals?
0-10s ______________
what time interval(s) is the object traveling at constant velocity? 10-20s ______________
When is the object at rest? ______________
30-40s ______________
the average
velocity for the following time intervals:
When is the object traveling at a constant velocity?
0-50s ______________
______________
0-10 s, 10-20
s, 30-40 s, and 0-50 s?
e velocity versus time graph for this object.
Mr.
Harrington
– [email protected]
PUM
| Kinematics
| Lesson!14:!Putting!It!All!Together
67
5
Name__________________________
Mr. Harrington – [email protected]
Period________
09.16.19
6
Name__________________________
Acceleration Worksheet
Period________
09.16.19
Name________________________
Acceleration
Period________ Date___________
Equations:
Acceleration = Final velocity – Initial velocity
Time
Time = Final Velocity – Initial Velocity
Acceleration
Final Velocity = Acceleration * Time + Initial Velocity
Problems: I n order to receive credit for this worksheet you M UST show your work using the GUESS
A roller coaster’s velocity at the top of a hill is 10 m/s. Two seconds later it reaches the bottom of the hill
Method. You can use a calculator but you must show all of the steps in the spaces provided.
with a velocity of 26 m/s. What was the acceleration of the coaster?
1. A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope, its speed is 4
m/s. But 3 seconds later, at the bottom of the slope, its speed is 22 m/s. What is its average acceleration?
A roller coaster is moving at 25 m/s at the bottom of a hill. Three seconds later it reaches the top of the hill
moving at 10 m/s. What was the acceleration of the coaster?
2. A cyclist accelerates from 0 m/s to 8 m/s in 3 seconds. What is his acceleration ? Is this acceleration higher than
Athat
caroftraveling
at 15accelerates
m/s starts to
decelerate
It comes to a complete stop in 10 seconds. What is it’s
a car which
from
0 to 30 m/s
in 8 seconds?
acceleration?
A child drops a ball from a window. The ball strikes the ground in 3.0 seconds. What is the velocity of the
ball the instant before it hits the ground?
3. A car advertisement states that a certain car can accelerate from rest to 70 km/h in 7 seconds. Find the car’s
average acceleration.
A boy throws a ball straight up into the air. It reaches the highest point of its flight after 4 seconds. How fast
was the ball going when it left the boy’s hand?
A lizard
accelerates
2 m/sof
to 25
10 m/s
m/sin
in30.0
4 seconds.
What
is is
theitslizard’s
average acceleration?
A4.train
moves
from rest from
to a speed
seconds.
What
acceleration?
If a train going 60 m/s hits the brakes, and it takes the train 1 minute 25 seconds to stop, what is the train’s
acceleration?
5. If a Ferrari, with an initial velocity of 10 m/s, accelerates at a rate of 50 m/s/s for 3 seconds, what will its final
velocity be?
Mr. Harrington – [email protected]
7
```