1. Physics schedule
11/14 Gravitational Potential Energy and Kinetic Energy TB p. 360 Part A Incline Lab Day 1 11/15 GPE TB p. 362 part B in your NB Incline Labe Day 2 11/16 GPE_ KE Pendulum Experiment HW GPE TB p CN 11/17 : Barbie Bungee Ride Challenge 11/18: Round up

2. Bell Ringer: Calculate the gravitational potential energy of a boy with a mass of 50kg that is at the top of a sledding hill that is 15m high? What is his KE at the bottom if he has a speed of 6m/s?
Make a sketch
What Is Given:
What is the problem asking for
What is the formula
Answer units

3. Goal: I can investigate the relationship between speed at the bottom of a hill and height and distance of the ramp. Bell Ringer What are three ways to describe acceleration

4. Read “What do you think” in textbook page 360. Explain why?
Goal: I can investigate the relationship between speed at the bottom of a hill and height and distance of the ramp.
Read “What do you think” in textbook page 360.
Explain why?

5. Goal: I can investigate the relationship between speed at the bottom of a hill and height and distance of the ramp.
Title: TB p.360 Part A
Read investigate part A as a class
2a. Height is constant 20 cm and distance changes
2b. Distance is constant 40cm and height changes

6. Goal: I can investigate the relationship between speed at the bottom of a hill and height and distance of the ramp.
Create a table in your notebook
Height constant 20CM
Distance
velocity
20 cm
20cm
Distance constant 40CM
Height
velocity
40 cm
40cm

7. Goal: I can investigate the relationship between speed at the bottom of a hill and height and distance of the ramp.
Bell ringer: 1. What is the GPE of a 25Kg girl at the top of a slide that is 3 m tall?
What would be her KE half way down the slide?
Sketch the problem G U E
S S

8. Distance stays the same and height changes

9. Goal: I can investigate the relationship between speed at the bottom of a hill and height and distance of the ramp.

10. Goal: I can investigate the relationship between speed at the bottom of a hill and height and distance of the ramp.
Create a table in your notebook
Member 1 Read Direction
Member 2 run velocimeter / supplies
Member 3 starts and stop ball
Member4 changes height and distance ( Record data)
Complete the tables from TB p 360
With your group, complete #3a and 4a-c on page 362
Graph the height and velocity for 2b
Everyone write the answers in their Data

11. Results Height Speed 1 2 3 Question #2a Height 20cm=.2m Distance Speed
Question #2b
Distance 40cm=.4m
Height
Speed 1 2 3

12. Goal: I can investigate the relationship between speed at the bottom of a hill and height and distance of the ramp.
Height constant 20CM
Distance
velocity
20cm
70 cm
5.7 km/h
80 cm
5.6 km/h
95 cm
Distance constant 40CM
Height
velocity
40cm
1cm
.9 km/h
3cm
2.1 km/h
17cm
4.9 km/h

13. I can investigate the relationship between speed at the bottom of a hill and height and distance of the ramp. Graph the height and velocity for 2b

14. Distance stays the same and height changes

15. Results Height Speed 1 2 3 Question #2a Height 20cm=.2m Distance Speed
Question #2b
Distance 40cm=.4m
Height
Speed 1 2 3

16. What affects speed? Question#2a Height 30cm=.3m Distance Velocity
3.64km/h cm
3.75km/h cm
3.59km/h
Question #2b
Distance 40cm=.4m
Height
Velocity cm
3.19km/h cm
4.96km/h cm
5.65km/h
Answer in you Notebook: What created a greater increase in speed ?

17. Goal: I can understand how height affects velocity in terms of energy
Bell Ringer1: Which ball will have the greatest velocity at the bottom of the ramp, if they all start at the same height? Why? A B C D
All the same

18. Goal: I can investigate the relationship between speed at the bottom of a pendulum and height of the period of its swing
Bell ringer 2:
1. Based on the data collected
in Table 1, Which of the
following velocities would you
predict to be at the distance
of 75cm?
2.34km/h b Km/h
4.24 km/h d km/h
2. What is the relationship
between height and velocity
In table 2
Table 1
Height 30cm=.3m
Distance
Velocity cm
3.64km/h cm
3.75km/h cm
3.59km/h
Table 2
Distance 40cm=.4m
Height
Velocity cm
3.19km/h cm
4.96km/h cm
5.65km/h

19. Goal: I can investigate the relationship between speed at the bottom of a pendulum and height of the period of its swing
Bell ringer:
Based on the data collected
in Table 1, Which of the
following velocities would you
predict to be at the distance
of 75cm?
2.34km/h b Km/h
4.24 km/h d km/h
2. What is the relationship
between height and velocity
In table 2
Table 1
Height 30cm=.3m
Distance
Velocity cm
3.64km/h cm
3.75km/h cm
3.59km/h
Table 2
Distance 40cm=.4m
Height
Velocity cm
3.19km/h cm
4.96km/h cm
5.65km/h

20. In your notebook, write a summary of the relationship between speed at the bottom of a ramp and both height and distance of the ramp. Based on the results from your activity. Did the height or distance change have a greater effect on the speed at the bottom of the ramp? (5-10 sentences)

21. Potential Energy, Energy Transfer and Path
A ball of mass m, initially at rest, is released and follows three difference paths. All surfaces are frictionless
The ball is dropped
The ball slides down a straight incline
The ball slides down a curved incline
After traveling a vertical distance h, how do the three speeds compare? h 1 3 2
(A) 1 > 2 > (B) 3 > 2 > 1 (C) 3 = 2 = 1 (D) Can’t tell

22. A ball rolls from point A to B
A ball rolls from point A to B. Explain how the ball’s KE and GPE will be different from position A and B A B

23. Goal: I can investigate the relationship between speed at the bottom of a pendulum and height of the period of its swing
Name something
you have seen in life that looks
and acts like a
pendulum

24. Goal: I can investigate the relationship between speed at the bottom of a pendulum and height of the period of its swing
Bell Ringer : Based on the data in the tables belowIf you released a ball at a height of 10 cm, what would you predict the to be velocity at the bottom
Height constant 20CM
Distance
velocity
20cm
70 cm
5.7 km/h
80 cm
5.6 km/h
95 cm
Distance constant 40CM
Height
velocity
40cm
1cm
.9 km/h
3cm
2.1 km/h
17cm
4.9 km/h

26. Date: Goal: I can investigate the relationship between speed at the bottom of a pendulum and height of the period of its swing
Textbook p.362 Part B

27. Goal: I can investigate the relationship between speed at the bottom of a pendulum and height of the period of its swing
Responsibilities
Person 1 measurements
Person 2 velocimeter / supplies
Person 3 starts and stop bob
Person 4 records data

28. What affects speed? Complete Part B 1c and 2a Height
Speed at the bottom
Complete Part B 1c and 2a

29. Date: Goal: I can investigate the relationship between speed at the bottom of a pendulum and height of the period of its swing
page 362 part B
Height
Speed at the bottom

30. Date: Goal: I can investigate the relationship between speed at the bottom of a pendulum and height of the period of its swing
Complete Part B #1-3c
Notebook due Friday

31. Goal: I can understand how height affects velocity in terms of energy
Bell Ringer :
Based on the pendulum activity
explain how height affects the
velocity of the pendulum at the bottom.

32. Example of a conservative system: The simple pendulum.
Suppose we release a mass m from rest a distance h1 above its lowest possible point.
What is the maximum speed of the mass and where does this happen ?
To what height h2 does it rise on the other side ? v h1 h2 m

33. Example: The simple pendulum.
What is the maximum speed of the mass and where does this happen ?
E = K + U = constant and so K is maximum when U is a minimum. y
y=h1
y=0

34. Example: The simple pendulum.
What is the maximum speed of the mass and where does this happen ?
E = K + U = constant and so K is maximum when U is a minimum
E = mgh1 at top
E = mgh1 = ½ mv2 at bottom of the swing y
y=h1 h1
y=0 v

35. Example: The simple pendulum.
To what height h2 does it rise on the other side?
E = K + U = constant and so when U is maximum again (when K = 0) it will be at its highest point.
E = mgh1 = mgh2 or h1 = h2 y
y=h1=h2
y=0

36. Potential Energy, Energy Transfer and Path
A ball of mass m, initially at rest, is released and follows three difference paths. All surfaces are frictionless
The ball is dropped
The ball slides down a straight incline
The ball slides down a curved incline
After traveling a vertical distance h, how do the three speeds compare? h 1 3 2
(A) 1 > 2 > (B) 3 > 2 > 1 (C) 3 = 2 = 1 (D) Can’t tell

38. Bungee Jump

39. Bungee Jump Barbie Bungee

40. Bungee Jump Objective:
In this activity, you will simulate a bungee jump using a Barbie doll and rubber bands. Before you conduct the experiment
I believe that _____ is the maximum number of rubber bands that will allow Barbie to safely jump from a height of 400 cm.
Now, conduct the experiment to test your prediction

41. Barbee Bungee

43. Bungee Jump

53. Bungee Jumbee
Now, conduct the experiment to test your prediction

55. Bungee Jump Objective:
In this activity, you will simulate a bungee jump using a Barbie doll and rubber bands. Before you conduct the experiment
I believe that _____ is the maximum number of rubber bands that will allow Barbie to safely jump from a height of 400 cm.
Now, conduct the experiment to test your prediction

57. Physics Schedual
11/ 21 GPE and KE POGIL 11/ 22 GPE and KE POGIL 11/ 22 quiz GPE and KE Happy Thanksgiving HW: SF procedure, method, materials due11/27

58. Goal: I can understand how height affects velocity in terms of energy
If you released a ball at a height of 10 cm, what would you predict
the to be velocity at the bottom?
Height constant 20CM
Distance
velocity
20cm
70 cm
5.7 km/h
80 cm
5.6 km/h
95 cm
Distance constant 40CM
Height
velocity
40cm
1cm
.9 km/h
3cm
2.1 km/h
17cm
4.9 km/h

59. Date: Goal: I can understand how height affects velocity in terms of energy
Review Results Ramp activity Part A
Review Results pendulum activity Part B

60. Results Ramp Activity Part A
Question #2a
Height 20cm=.2m
Distance
Speed 1 2 3
Question #2b
Distance 40cm=.4m
Height
Speed 1 2 3

61. What affects speed? Ramp Activity
Question#2a
Height 30cm=.3m
Distance
Velocity cm
3.64km/h cm
3.75km/h cm
3.59km/h
Question #2b
Distance 40cm=.4m
Height
Velocity cm
3.19km/h cm
4.96km/h cm
5.65km/h

62. In your notebook, write a summary of the relationship between speed at the bottom of a ramp and both height and distance of the ramp. Based on the results from your activity. Did the height or distance change have a greater effect on the speed at the bottom of the ramp? (5-10 sentences)

63. Goal: I can understand how height affects velocity in terms of energy
Independently read textbook page
and take Cornell notes in your NB
Topic Title : TB p. 363 Physics talk
15 min

64. Goal: I can understand how height affects velocity in terms of energy

65. Goal: I can understand how energy transfers between GPE and KE on a roller coaster. Bell Ringer: According to students’ results, as the length (m) increases, What happens to the pendulum’s period (T)?

66. Potential Energy
Potential energy (PE) = stored energy of position possessed by an object
Examples:
The ball of a demolition machine
A stretched bow
Coconuts in a tree
There are 2 types of potential energy:

67. 1. Gravitational Potential Energy
Gravitational potential energy = (PEgrav) the energy stored in an object as the result of its vertical position or height.
The energy is stored as the result of the gravitational attraction of the Earth for the object. 
Example: The PEgrav of the massive ball of a demolition machine is dependent on two variables - the mass of the ball and the height to which it is raised.

68. Kinetic Energy Kinetic Energy = (KE) energy of motion
There are many types of kinetic energy, but we are going to focus on only one type: energy due to motion from one location to another.
Examples:
Roller coasters going downhill
Skateboarding up and down a half-pipe
Wind

69. Calculating GPE GPE = mgh m = mass of object (kg)
g = acceleration due to gravity
on Earth it equals 9.8 m/s2
Δ h = change in height of object (meters)
PEgrav units are Joules(J) because we are measuring energy.
Recall the weight (w) is mass x gravity (w = mg). As a result, PEgrav can also be calculated if you are given weight.
PEgrav = wΔh

70. Kinetic Energy Calculating KE KE = ½ m v2
½ = 0.5 or half (constant with no units)
m = mass of object (kg)
v2 = velocity2 or velocity x velocity (m/s)
KE units are Joules because we are measuring energy.

71. Goal: I can understand how height affects velocity in terms of energy
Bell Ringer :
Based on the pendulum activity
explain how height affects the
velocity of the pendulum at the bottom.

72. With your partner complete Physics POGIL TB p363-364 #1-6 10 minutes
Goal: I can understand how energy transfers between GPE and KE on a roller coaster.
With your partner complete Physics POGIL TB p # minutes

73. Goal: I can understand how energy transfers between GPE and KE on a roller coaster.
With your partner complete Physics POGIL TB p #1-6 Class Share 10 minutes

74. Goal: I can understand how energy transfers between GPE and KE on a roller coaster.
With your partner complete Physics POGIL TB p #1-6 and minutes

75. Goal: I can understand how energy transfers between GPE and KE on a roller coaster
With your partner complete Physics POGIL TB p #7-13 Class Share 10 minutes

76. Goal: I can understand how energy transfers between GPE and KE on a roller coaster.
Bell Ringer: Calculate the gravitational potential energy of a boy with a mass of 50kg that is at the top of a sledding hill that is 15m high? What is his KE at the bottom if he has a speed of 6m/s?

77. Goal: I can understand how energy transfers between GPE and KE on a roller coaster.
Science Fair Experiment due 11/27
Data Tables and Graphical Representation of Data – You will turn in the data you collected from 10 or more trials (in the form of a table) and at least one graph showing the best values.

78. Date: Goal: I can understand how energy transfers between GPE and KE on a roller coaster.
GPE= mgh KE = 1/2 mv2 Conservation of Energy say that GPE + KE = ME ME= mechanical energy ( total energy of the system)

80. Goal: I can understand how energy transfers between GPE and KE on a roller coaster.
With your shoulder partner complete TB p. 370 # min

81. Date: 1 Goal: I can understand how energy transfers between GPE and KE on a roller coaster. CCRS: Interpretation of Data (IOD)20-23 Translate information into a table, graph, or diagram
With your shoulder partner complete TB p. 370 #1-6 Class discussion ME = KE + GPE

82. TB p 363-364 and take Cornell notes POGIL on TB p 363 handout #1-13
Goal: I can understand how energy transfers between GPE and KE on a roller coaster. CCRS: Interpretation of Data (IOD)20-23 Translate information into a table, graph, or diagram
Due today
TB p and take Cornell notes
POGIL on TB p 363 handout #1-13
HW: TB p. 367 #1-5
HW: TB p #7-11

83. based on the pendulum’s positions.
Goal: I can understand how energy transfers between GPE and KE on a roller coaster.
Fill in the a chart
based on the pendulum’s
positions.
mass of bob=.4kg height at #1=.24m
Position of bob
Height (m)
GPE (J) =mgh
KE (J)=1/2 mv2
GPE + KE (J) 1
.24m 2
.12m 3
0 m

84. Date Goal: I can understand how energy transfers between GPE and KE on a roller coaster.
ME = KE + GPE

85. Goal: I can investigate the relationship between speed at the bottom of a pendulum and height of the period of its swing
If you released a ball at a height of 10 cm, what would you predict
the to be velocity at the bottom?
Height constant 20CM
Distance
velocity
20cm
70 cm
5.7 km/h
80 cm
5.6 km/h
95 cm
Distance constant 40CM
Height
velocity
40cm
1cm
.9 km/h
3cm
2.1 km/h
17cm
4.9 km/h

86. Goal: I can understand how height affects velocity in terms of energy
TB p. 367 #1- 3

87. Date: Goal: I can understand how height affects velocity in terms of energy
WB p

88. Goal: I can develop a roller coaster for a particular group of riders.
Roller Coaster Project WB p.7

89. Goal: I can develop a roller coaster for a particular group of riders.
On the back of workbook WB p.7
List your group of riders
List 5 ideas how you will make your roller
coaster different to for your group of riders
Everyone in the group must complete #1-3
on WB p. 8

90. Below is a ball that comes to rest at position 2 and then moves to 3, 4, and to 5. If the ball has a mass of 40kg, what is its KE at position 3?
c J d J

91. At what point does the cart travel the
The cart above moves on a track form A to B to C to D. At what point does the cart have the greatest GPE? A B C D
At what point does the cart travel the
The cart above moves on a track form A to B to C to D. At what point does the cart have the greatest GPE
As the cart in the above image moves on the track form A to B, how do its potential and kinetic energies change?