Physics 20 Unit B: Dynamics
Submitted by: Colin Sticksl
EDUC 3601
Table of Contents
FOCUSING QUESTIONS...................................................................................................................................................................... 3
GRAPHIC ORGANIZER ....................................................................................................................................................................... 3
UNIT SUMMARY .................................................................................................................................................................................. 4
RATIONALE .......................................................................................................................................................................................... 4
LEARNING OUTCOMES...................................................................................................................................................................... 5
GENERAL OUTCOMES ............................................................................................................................................................................................. 5
SPECIFIC OUTCOMES FOR KNOWLEDGE .............................................................................................................................................................. 5
SPECIFIC OUTCOMES FOR SKILLS ......................................................................................................................................................................... 5
ATTITUDE OUTCOMES............................................................................................................................................................................................ 5
UNIT ASSESSMENT PLAN ................................................................................................................................................................. 6
UNIT SCHEDULES ............................................................................................................................................................................... 7
UNIT AT A GLANCE (MARCH/APRIL 2012): ..................................................................................................................................................... 7
DAY TO DAY SCHEDULE (MARCH/APRIL 2012).............................................................................................................................................. 7
UNIT RESOURCES ............................................................................................................................................................................... 9
MATERIALS AND EQUIPMENT ............................................................................................................................................................................... 9
LEARNING RESOURCES........................................................................................................................................................................................... 9
Print Resources: ........................................................................................................................................................................................................ 9
Software: ....................................................................................................................................................................................................................10
Websites:.....................................................................................................................................................................................................................10
2
Focusing Questions
1. How does understanding forces help humans interact with their environment?
2. How do the principles of dynamics affect mechanical technologies or systems?
3. What role does gravity play in the universe?
Graphic Organizer
Concepts
Summary
SLOs
GLO1
Explain the effects of forces on velocity
Force
Force is a push or a pull on an object.
20-B1.1k
Net Force
Vector sum of two or more forces acting on an object.
20-B1.1k
Newton’s 1st
Law
Object will continue being at rest or moving at constant speed in a
straight line unless acted upon by a non-zero net force.
20-B1.2k
Newton’s 2nd
Law
When a non-zero net force acts on an object, the object accelerates in
the direction of the net force, F = ma.
20-B1.3k
Newton’s 3rd
Law
If object A exerts a force on object B, then B exerts a force on A that is
equal in magnitude and opposite in direction.
20-B1.4k
Types of
Friction
Static friction is present when an object is stationary but experiences an
applied force. Kinetic friction is present when an object is moving.
20-B1.5k
Factors
affecting
friction
The magnitude of the force of friction acting on an object is directly
proportional to the normal force on the object.
20-B1.5k,
20-B1.6k
GLO2
Explain that gravitational effects extend throughout the universe
Gravitational
force
Fundamental force, described as an action-at-a-distance force or as a
field
20-B2.1k,
20-B2.4k
Gravitational
field strength
The ratio of gravitational force to mass at a specific location. (N/kg)
20-B2.3k
Newton’s law Gravitational force between any two masses is proportional to the
of gravitation product of the masses and inversely proportional to the square of the
separation distance between the masses.
20-B2.2k
Calculating g
anywhere
20-B2.5k,
20-B2.6k
Use Newton’s law to determine the magnitude of gravitational field
strength anywhere in the universe.
3
Unit Summary
The dynamics unit begins by looking at the affect of forces on velocity. In the beginning of the unit you
will learn about vector addition, Newton’s laws of motion, and static and kinetic friction. By learning
about these concepts you will be able to answer real-world problems and demonstrate how these
principles influence the development of mechanical systems. We will also look at how technologies
developed using these concepts impact our society and everyday life. We will conclude the unit by
looking at gravity and exploring the role it plays in the universe. We will learn about gravitational force,
Newton’s law of universal gravitation, and gravitational fields. These principles will allow us to explore
weights on different planets and lead into circular motion (next unit).
Rationale
The focus of this unit is on how causes of motion, and gravitation influence the design of mechanical and
other systems. Because the concepts learned in this unit are practical and observed in everyday life it is
important to incorporate activities and enrichment that allow students to relate to the concepts.
An example of relating content to real life and practical experiences would be to relate inertia and
Newton’s first law to vehicle safety systems. As the unit develops the students will gain a deeper
understanding of forces allowing them to make informed decisions for future research and daily
application.
The majority of the physics 20 students in the school can grasp the knowledge content of the course
readily and are high achieving students; therefore more focus will be placed on 21st century learner
competencies and producing an environment conducive for discovery and science inquiry. Incorporating
new media into the classroom will help provide context for the subject matter. I feel a mix of traditional
and new media will keep students engaged. I plan to incorporate videos, graphics, and music to provide
enrichment and balance instruction keeping students engaged throughout my lessons.
It is also important to have a balance of theory and practice. Students will be given time in class to
perform labs and work collaboratively solving problems and applying theories learned from lectures.
Giving students time to work in class will provide an opportunity for formative assessment.
While developing the unit I have taken into account the resources available at the school for learning
activities. At the school there is a working lab available for hands on experiments. Also the classroom is
equipped with a sound system and projector that will allow me to incorporate media into the classroom.
Even though most students are high achieving I think there should still be a structure for extra help. For
this reason I will make myself available to my students every morning for tutorial hours. Students
requiring extra help will be encouraged to attend tutorials and I will also make extra resources available
to those that need them.
The concepts taught within this unit are universal and transcend ethnic and gender differences. For this
reason I have chosen to focus on making the material engaging through technology rather than
approaching topics from different cultural perspectives to engage students.
4
Learning Outcomes
General Outcomes
There are two major outcomes for this unit, Students will:
1. explain the effects of balanced and unbalanced forces on velocity
2. explain that gravitational effects extend throughout the universe
Specific Outcomes for Knowledge
Upon completion of the unit, Students will:
1. explain that a non-zero net force causes a change in velocity
2. calculate the net force
3. apply Newton’s three laws to solve motion problems
4. explain static and kinetic friction
5. identify gravity as a fundamental force in nature
6. describe Newton’s law of universal gravitation
7. explain the Cavendish experiment
8. define and apply the concept of a gravitational field
9. compare gravitational field strength and acceleration due to gravity
10. predict the weight of objects on different planets
Specific Outcomes for Skills
Students will:
1. Formulate questions and plan investigations of problems, ideas, and issues
a. e.g., What are the relationships among acceleration, mass and force acting on a moving
object?
2. Use a broad range of tools to conduct investigations
a. e.g., Use interval timers or motion sensors to gather data
b. e.g., Determine the local value of acceleration due to gravity
3. Analyze data and apply mathematical and conceptual models to find solutions
a. e.g., Use free-body diagrams to describe forces acting on an object
4. Work collaboratively in addressing problems using effective science communication to formulate
ideas and assess results
Attitude Outcomes
Students will be encouraged to:
o research how the understanding of forces helps humans interact with their environment
o recognize the contribution of science and technology to the progress of our society
o insist on evidence before accepting a new idea or explanation (find out gravity for themselves)
o appreciate an understanding of forces encountered in their daily lives
o recognize the benefit of strengthening mathematical skills for using in understanding and
examining physical systems
o value the need for accuracy and precision in data collection related to force investigations
5
Unit Assessment Plan
Assignments and Lab reports: 40%
Quizzes: 10%
Unit Exams: 50%
SLO
Non-zero net forces
cause a change in
velocity
Apply Newtons’s 1st &
2nd Laws of motion to
explain net force, mass,
and acceleration
Apply Newton’s 2nd &
3rd Laws to solve linear
motion problems
Explain static and
kinetic force of friction
Apply Newton’s Laws of
motion to solve linear
motion problems
Apply Newton’s Laws of
motion to solve linear
motion problems
Apply Newton’s Laws of
motion to solve linear
motion problems
including frictional
effects
All above SLOs
All above SLOs
Describe Newton’s Law
of universal gravitation
Date
March 13
Due March 14
Test/Quiz (%)
March 19
Quiz: Newton’s 1st & 2nd
Laws of Motion (5%)
Relate the gravitational
constant to the local
value of the acceleration
due to gravity
Explain gravitational
force, Newton’s law,
Cavendish experiment,
and field gravitational
effects. Predict
differences in weight of
objects on different
planets.
April 19
Due April 21
Assignment/Lab (%)
Lab: Force as a vector
(5%)
March 21
Due March 22
Vertical physics
assignment (5%)
April 2
Due April 3
Virtual Lab:
Acceleration, Force,
Mass, & Friction (5%)
April 3
Due April 4
Newton’s 3rd Law
worksheet (5%)
April 10
Due April 11
Friction Worksheet
(5%)
April 11
April 12
April 17
Due April 18
April 23
Review Quiz (5%)
Unit Test: Forces (30%)
Gravity & Universal
Gravitation assignment
(5%)
Lab: Determining the
local gravitational
constant (10%)
Unit Test: Gravity (20%)
6
Unit Schedules
Unit at a glance (March/April 2012):
Monday
12 - Intro to
Dynamics
19 – Quiz, N2L
notes, elevator
Tuesday
13 – Force as a
vector Lab & FBD
20 – N2L; pulley,
trolley, start of
tension
27 - Spring Break
3 – Newton’s 3rd
Law
Wednesday
14 – Newton’s 1st
Law
21 – Tension
vertical physics
Thursday
15 – Newton’s 2nd
Law
22 – Parent
Teacher Interviews
Friday
16 – Newton’s 2nd
Law cont.
23 – PD Day
28 - Spring Break
4 – Static Friction
29 - Spring Break
5 – Static & Kinetic
Friction
30 - Spring Break
6 – Good Friday
16 – Newton’s Law
of gravitation
10 – Friction
worksheet
17 – Gravity
Assignment
11 – Review Quiz,
Force Review
18 – Weight on
other planets
23 – Unit Test:
Gravity
24 – Circular
motion cont.
25
12 – Unit test:
Forces
19 – Measuring
gravity with ticker
tape
26
13 – Force of
gravity on earth
20 – Gravity
Review, start
circular motion
27
26 – Spring Break
2 – Intro to
Friction, Trolley
Lab
9 – PD Day
Day to Day Schedule (March/April 2012)
Date
March
12
March
13
March
14
March
15
Lesson
Activities
#
1
Introduce myself
Intro to Dynamics
(formative assessment &
discussion)
Nature of Force
Presentation
(QuickTime, including
videos & practice
problems)
FBD vector lab
discussion
2
Intro – Petronas Twin
Towers
FBD on objects in
equilibrium
presentation
Force as a vector Lab
3
Newton’s 1st Law
presentation
(QuickTime, videos,
song, & practice
problems)
4
Newton’s 2nd Law
presentation
(QuickTime, videos,
Time
SLOs
5min 20-B1.1k
15min
Content
Assessment
Dynamics
Force
Force & Velocity
Formative
discussion and
questions
20-B1.1k
20-B1.6k
Force as a vector
Vector
components
Lab worksheet
(5%)
80min 20-B1.2k
20-B1.7k
Newton’s 1st Law
Linear motion
problems
Formative
discussion and
questions
60min 20-B1.3k
20-B1.7k
Newton’s 2nd
Law
Net force, mass,
Formative
discussion and
questions
50min
10min
5min
15min
60min
7
song, & practice
problems)
Force as vector lab
(hand back/review)
Newton’s 2nd Law (cont.)
Review for quiz
acceleration
20min
March
16
5
March
19
6
Quiz
Vertical motion
(elevator examples &
video)
30min 20-B1.3k
20-B1.7k
50min
March
20
7
March
21
8
40min 20-B1.6k
20-B1.7k
20min
20min
50min 20-B1.6k
20-B1.7k
30min
April 2
9
Pulleys & trolley virtual
demonstration
Start Tension notes
Practice Problems
Tension & Vertical
physics presentation
(cont.)
Vertical physics
assignment
Vertical Physics
assignment review
Introduction to Friction
Trolley (Virtual) Lab
April 3
10
Newton’s 3rd Law
presentation
(QuickTime, videos,
song, & practice
problems)
Trolley Lab review
3rd Law worksheet
Static Friction
presentation
(QuickTime, videos,
demo, & practice
problems)
3rd Law worksheet
review
Static & Kinetic Friction
presentation
(QuickTime, demo, &
practice problems)
Friction Review
Friction Worksheet
60min 20-B1.4k
20-B1.7k
April 4
11
April 5
12
April
10
13
30min 20-B1.3k
35min 20-B1.7k
10min 20-B1.5k
20-B1.7k
20min
50min
10min
10min
60min 20-B1.5k
20-B1.7k
Newton’s 2nd
Law
Net force, mass,
acceleration
Newton’s 2nd
Law
Vertical motion
problems &
applications
Resultant force
Vector addition
Vertical motion
20min 20-B1.5k
60min 20-B1.7k
Quiz (5%)
Formative
discussion and
questions
Tension
Vertical motion
Formative
discussion and
questions
Vertical physics
assignment (5%)
Static and Kinetic Trolley Lab (5%)
Friction
Acceleration,
force, mass, &
friction
Force
Formative
interactions
discussion and
Object
questions
interactions
3rd Law worksheet
Newton’s 3rd Law (5%)
Static Friction
Normal Force
Formative
discussion and
questions
Static & Kinetic
Friction
Normal Force
Inclined Plane
Static & Kinetic
Friction
Normal Force
Inclined Plane
Formative
discussion and
questions
20min
80min 20-B1.5k
20-B1.7k
Formative
discussion and
questions
Friction
Worksheet (5%)
8
April
11
14
April
12
April
13
15
April
16
17
April
17
18
April
18
19
16
April
19
20
April
20
21
April
23
22
Review quiz
Forces Review (mark
quiz, practice problems)
Unit Test: Forces
30min All above
50min
All above
Review quiz (5%)
80min All above
All above
Test (30%)
Force of Gravity on
Earth presentation
(QuickTime, video, &
problems)
Newton’s Law of
Gravitation (QuickTime,
video, & problems)
Review
Gravity & Universal
Gravitation assignment
65min 20-B2.2k
Fundamental
force in nature
Formative
discussion and
questions
80min 20-B2.2k
20-B2.5k
Universal law of
gravitation
Gravity throughout the
universe (examples,
problems)
Gravity & Universal
gravitation assignment
review
65min 20-B2.3k
20-B2.4k
20-B2.6k
Determining the local
gravitational constant
lab
(Ticker tape)
Start Circular motion
Gravity Review
Gravitational constant
lab review
Unit test: Gravity
80min 20-B2.5k
Local
acceleration
Gravitational
constant lab
(10%)
20min All above
20min (gravity)
All above
(gravity)
25min
80min All above
(gravity)
Formative
discussion and
questions
All above
(gravity)
Unit test (20%)
10min 20-B2.2k
20-2.4k
80min 20-B2.5k
Formative
discussion and
questions
Universal law of
Gravity &
gravitation
Universal
Field effects
Gravitation
assignment (5%)
Weight of objects Formative
on different
discussion and
planets
questions
Cavendish
15min
Unit Resources
Materials and Equipment
Date
March 13
April 2
April 3
April 19
Materials
Mass, metre sticks, protractors, Newton meters,
tape
Laptops
Air table, gliders, mass
Labquest, photogate, cushion, picket fence, stand
Activity
Force as a vector Lab
Virtual trolley lab
Object interactions demo
Measuring gravity with ticker tape
Learning Resources
Print Resources:
1. Ackroyd, J. E. (2009). Pearson physics. Toronto: Pearson.
2. Ackroyd, J. E. (2009). Physics Level 20 Teacher's Resource. Toronto: Pearson.
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3. Runte, R. (2011). Evaluation of Student Learning. Lethbridge: Grenville.
Software:
1. PowerPoint
2. GIMP
3. QuickTime
Websites:
1. Free Online Course Materials | Physics | MIT OpenCourseWare. (n.d.). Free Online Course
Materials | MIT OpenCourseWare. Retrieved March 2, 2012, from
http://ocw.mit.edu/courses/physics/
2. Furthermore, o. c. (n.d.). Physics Demonstrations - Motion. Sprott's Gateway. Retrieved
March 2, 2012, from http://sprott.physics.wisc.edu/demobook/chapt
3. Khan Academy. (n.d.). Khan Academy. Retrieved March 2, 2012, from
http://www.khanacademy.org/search?page_search_query=physics
4. Mr. Clintberg's Studyphysics!. (n.d.). Mr. Clintberg's Studyphysics!. Retrieved March 2,
2012, from http://www.studyphysics.ca/index.html
5. Newton's second law experiment. (n.d.). Homepage Walter Fendt. Retrieved March 2,
2012, from http://www.walter-fendt.de/ph14e/n2law.htm
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