14.09.08APWeek5

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AP PHYSICS
MONDAY 14.09.08
STANDARDS: KINEMATICS 1D
& 2D: BIG IDEA 3
LEARNING OBJECTIVE:
SWBAT BE ABLE TO CREATE
DISPLACEMENT, VELOCITY,
AND ACCELERATION GRAPHS
FROM COLLECTED DATA
Warm Up
The highest speed achieved by a
standard non-racing sports car is
3.50x102 km/h. Assuming that
the car accelerates at 4.00 m/s2,
how long would this car take to
reach its maximum speed from
rest?
I –Independent Resilient Individuals
RST.11-12.9 Synthesize information from a range of
sources into coherent understanding of a process,
phenomenon, or concept,…
Learning Objective: SWBAT collect data and find their
reaction time using the fact that gravity accelerates
objects downwards
Agenda:
1. Warm Up
2. Finish Lab & Reflect
Homework
KAP # 5
AP PHYSICS
TUESDAY 14.09.09
STANDARDS: KINEMATICS 1D
& 2D: BIG IDEA 3
LEARNING OBJECTIVE:
SWBAT GRAPHICALLY
REPRESENT SPEED AND
VELOCITY
20
Warm Up
Create a velocity and acceleration
vs. time graph of each.
16
x(m)
I –Independent Resilient Individuals
RST.11-12.9 Synthesize information from a range of
sources into coherent understanding of a process,
phenomenon, or concept,…
Learning Objective: SWBAT collect data and find their
reaction time using the fact that gravity accelerates
objects downwards
12
8
4
5 10 15 20 25 3035 40 45 50
t(s)
Agenda:
1. Warm Up
2. Review HW 5
3. Lab Reflection
4. Falling objects Lecture
5. Falling Objects HW #6
Homework
KAP # 6
AP PHYSICS
WEDNESDAY 14.09.10
STANDARDS: KINEMATICS 1D & 2D: BIG
IDEA 3
I –INDEPENDENT RESILIENT INDIVIDUALS
RST.11-12.9 SYNTHESIZE INFORMATION FROM A RANGE OF
SOURCES INTO COHERENT UNDERSTANDING OF A PROCESS,
x(m)
PHENOMENON, OR CONCEPT,…
LEARNING OBJECTIVE: SWBAT COLLECT
DATA AND FIND THEIR REACTION TIME
USING THE FACT THAT GRAVITY
ACCELERATES OBJECTS DOWNWARDS
Agenda:
1. Warm Up
2. Review HW
3. Accelerating Falling Objects
Warm Up
20
Create a velocity time graph
based on the info below
16
12
8
4
5 10 15 20 25 3035 40 45 50
t(s)
Homework
KAP#7
AP PHYSICS
THURSDAY 13.09.11
STANDARDS:
KINEMATICS 1D & 2D: BIG
IDEA 3
I –INDEPENDENT RESILIENT INDIVIDUALS
RST.11-12.9 SYNTHESIZE INFORMATION FROM A
RANGE OF SOURCES INTO COHERENT
UNDERSTANDING OF A PROCESS, PHENOMENON,
OR CONCEPT,…
LEARNING OBJECTIVE: SWBAT COLLECT DATA AND
FIND THEIR REACTION TIME USING THE FACT THAT
GRAVITY ACCELERATES OBJECTS DOWNWARDS
LEARNING OBJECTIVE:
SWBAT ANALYZE SITUATIONS
INVOLVING A CONSTANT
ACCELERATION
Agenda
1. Warm up
2. Trigonometry & Vectors Lecture
3. Trig & vectors wksht
4. Quiz Friday: conversions, sig figs, scientific
notation, graphing
Warm Up
Find the final velocity of a
marble that falls 1x103 m
from rest onto a building
10.0 m tall, assuming that
there is no air resistance
and g=9.8m/s2
Homework
KAP#8 worksheets
Warm Up
What is R and θ
AP PHYSICS
FRIDAY
13.09.12
STANDARDS: KINEMATICS
1D & 2D: BIG IDEA 3
RST.11-12.4 MEANING OF SYMBOLS, KEY TERMS,
TECHNICAL JARGON
PROBLEM SOLVERS
OBJECTIVE: SWBAT FIND
THE MAGNITUDE AND
DIRECTION OF VECTORS
R
9
θ
12
Agenda
1.
Warm Up
2.
Vectors Intro
3.
Stamp Homework
4.
Vectors Worksheet
Homework
KAP #9
KAP #1
Study Significant Figures from your book on your own.
Answer the following questions: pg. 19 9,10,11,13,14
Come on Tuesday ready to ask questions (We do not have time to spend a whole
class on them, so when studying significant figures you should be able to answer
the following questions if you’ve done a good job.
1. What are they? What does the book mean by a significant figure?
2. When are significant figures used?
3. What benefits do using significant figures give to scientists and science students?
4. How are they used? (How do you use them in problem solving?)
KAP #2
1. The fastest fish, the sailfish, can swim 1.2x10 2 km/h. Suppose you have a friend who
lives on an island 16 km away from the shore. If you send a message using a sailfish
as a messenger, how long will it take for the message to reach your friend?
2. An ostrich can run at speeds of up to 72 km/h. How long will it take an ostrich to run
1.5 km at this top speed?
3. A cheetah is know to be the fastest mammal on Earth, at least for short runs.
Cheetahs have been observed running a distance of 5.50x102 m with an average
speed of 1.00x102 km/h.
a. How long would it take a cheetah to cover this distance t this speed?
b. Suppose the average speed of the cheetah were just 85.0 km/h. What distance
would the cheetah cover during the same time interval calculated in (a)?
4. The peregrine falcon is the fastest of flying birds (and, as a matter of fact, is the fastest
living creature). A falcon can fly 1.73 km downward in 25 s. What is the average
velocity of the peregrine falcon?
KAP #3 :
p. 46
1,,4,7,8, 11
p.47 1, 3, 6
KAP #4 CONSTANT ACCELERATION PROBLEMS
1. In 1986, the first flight around the globe without a single refueling was
completed. The aircrafts average speed was 186 km/h. If the ariplane landed at
this speed and accelerated at -1.5 m/s2, how long did it take fo the airplane to
stop?
2. Some tropical butterflies can reach speed of up to 11 m/s. Suppose a butterfly
flies at a speed of 6.0 m/s while another flying insect some distance ahead flies
in the same direction with a constant speed. The butterfly then increases its
speed at a constant rate of 1.4 m/s 2 and catches up to the other insect 3.0 s
later. How far does the butterfly travel during the race?
3. Stetching 9345 km from Moscow to Vladivostok, the Trans-Siberian reailway is
the longest single railroad in the world. Suppose the train is approaching the
Moscow station at a velocity of +24.7 m/s when it begins a cosntant acceleration
of -0.850 m/s2 . This acceleration continues for 28s. What will be the trains final
velocity when it reaches the station.
KAP #5
AP Physics B FRQ on separate sheet.
REPRESENTING VELOCITY AND ACCELERATION GRAPHICALLY
Step 1: Repeat 2 of your most recent labs with slight modifications.
a) Tumblebuggy speed lab
b) Penny drop gravity lab
Modifications: Track the position of the car and penny as they move. You can do
this using the lap feature on your phone. Do multiple trials and average them for
better data.
Step 2: Record your data in tables. Create your own. In each table begin with
displacement (m), time (s)
Step 3: Pick 5 points on your best fit curve of your displacement vs time graph and
find the instantaneous velocity at that instant (slope of the tangent line).
Step 4: Graph velocity vs. time.
Step 5: Pick 5 points on your best fit curve of your velocity vs. time graph and find the
instantaneous velocity at those points (slope of the tangent line)
Step 6: Graph Acceleration vs. time
Hint: You can check your work if you have a graphing calculator and you enter your
displacement vs time data.
DISPLACEMENT VS. TIME GRAPH KAP #6A
20
Below is the motion of a radio controlled car
1. Find the velocity from 0 to
4 s.
2. Find the velocity from 4 to
8 s.
3. Find the velocity from 8 to
10s.
4. What is the equation of
the line segment that begins
at 4 s and ends at 8 s
5. What is the area under
the curve from 0s to 4s?
6. Create a velocity vs time
graph and an acceleration vs
time graph using this data
x(m)
10
0
5
t(s)
1
VELOCITY VS. TIME GRAPH KAP #6B
20
This shows the change in motion of a
radio controlled car.
10
v(m/s)
1. What is the speed of the
car at 4s?
2. Find the equation of the
line segment that goes
from 6s to 10s.
3. Find the acceleration
from 4 to 6 s.
4. Find the acceleration
from 6 to 10s.
5. Find the displacement
from 4s to 6s.
6. Find the displacement
from 0 to 4 s
7. Create an acceleration
vs time graph and a
distance vs time graph
using this data
assuming that the initial
position of the object is
0m
0
5
t(s)
10
KAP #7 FALLING OBJECTS
1. The Jonhn Hancock Center in Chicago is the tallest building in the United States in
which there are residenttial apartments. The Hancock Center is 343 m tall.
Suppose a resident accidentally causes a chunk of ice to fall from the roof. What
would be the velocity of the ice as it hits the ground? Neglect Air resistance.
2. Brian Berg of Iowa built a house of cards 4.88 m tall. Suppose Berg throws a ball
from ground level with a velocity of 9.98 m/s straight up. What is the velocity of
the ball as it first passes the top of card house?
3.
The tallest roller coaster in the world is the Desperado in Nevada. It has a lift
height of 64 m. If an archer shoots an arrow straight up in the air and the arrow
passes the top of the roller coaster 3.0 s after the arrow is shot, what is the initial
speed of the arrow?
4. The Westin Stamford Hotel in Detroit is 228 m tall. If a worker on the roof drops a
sandwich, how long does it take the sandwich to hit the ground, assuming there is
no air resistance? How would aire resistance affect the answer?
KAP #9 MAGNITUDE & ANGLE OF VECTORS
For each vector find the magnitude,
angle, and the x & y components.
Each mark is 1 unit.
vy (m/s)
vx (m/s)
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