Mechanics: Motion, Forces, Energy and Gravity, from Particles to Planets
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Mechanics: Motion, Forces, Energy and Gravity, from Particles to Planets
UNSW Australia (The University of New South Wales)
À propos de ce cours
4.4
160 ratings
Most of the phenomena in the world around you are, at the fundamental level, based on physics, and much of physics is based on mechanics. Mechanics begins by quantifying motion, and then explaining it in terms of forces, energy and momentum. This allows us to analyse the operation of many familiar phenomena around us, but also the mechanics of planets, stars and galaxies.
This on-demand course is recommended for senior high school and beginning university students and anyone with a curiosity about basic physics. (The survey tells us that it's often used by science teachers, too.)
The course uses rich multimedia tutorials to present the material: film clips of key experiments, animations and worked example problems, all with a friendly narrator. You'll do a range of interesting practice problems, and in an optional component, you will use your ingenuity to complete at-home experiments using simple, everyday materials.
You will need some high-school mathematics: arithmetic, a little algebra, quadratic equations, and the sine, cosine and tangent functions from trigonometry. The course does not use calculus. However, we do provide a study aid introducing the calculus that would accompany this course if it were taught in a university.
By studying mechanics in this course, you will understand with greater depth many of the wonders around you in everyday life, in technology and in the universe at large. Meanwhile, we think you'll have some fun, too.
Programme du cours : ce que vous apprendrez dans ce cours
1
Section
Introduction and Basic Tools
This introductory section covers some basic tools you will need to solve some of the physics problems we will encounter later.
5 vidéos (Total 23 min), 2 lectures, 6 quiz
5 vidéos
Course Welcome2 min
Lesson 1.1: Introduction and Context3 min
Lesson 1.2: Units and Significant Figures7 min
Lesson 1.3: Vectors and Scalars4 min
Lesson 1.4: Estimating5 min
2 lectures
Course structure and grading3 min
Week 1 Study Aids10 min
6 exercices pour s'entraîner
Start of course survey32 min
Introduction and Context8 min
Units and Significant Figures (Important skills in this course!)14 min
Vectors and Scalars16 min
Estimating10 min
Week 1 Test22 min
2
Section
Velocity and Acceleration
Here we introduce kinematics, in which we describe and quantify movement of objects through space over time. Motion is so important to mechanics (and most of physics) that we'll spend a few weeks establishing the tools and techniques we'll need. We'll leave explaining motion to the later weeks, starting with Newton's laws in week 4. Here we study the simplest case: motion in a straight line.
4 vidéos (Total 24 min), 1 lecture, 5 quiz
4 vidéos
Lesson 2.2: Acceleration7 min
Lesson 2.3: Relating Velocity, Acceleration and Displacement2 min
Lesson 2.4: Relative Motion5 min
1 lecture
Week 2 Study Aids10 min
5 exercices pour s'entraîner
Graphing Displacement and Velocity4 min
Acceleration14 min
Relating Velocity, Acceleration and Displacement4 min
Relative Motion4 min
Week 2 Test12 min
3
Section
Motion in Two Dimensions
Here we look at kinematics in two-dimensions – specifically, projectiles and objects in circular motion.
4 vidéos (Total 25 min), 1 lecture, 6 quiz
4 vidéos
Lesson 3.2: Combining Vertical and Horizontal Motion3 min
Lesson 3.3: Trajectories and Range7 min
Lesson 3.4: Uniform Circular Motion6 min
1 lecture
Week 3 Study Aids10 min
5 exercices pour s'entraîner
Projectiles, Falling Vertically Under Gravity14 min
Combining Vertical and Horizontal Motion14 min
Trajectories and Range6 min
Uniform Circular Motion4 min
Week 3 Test18 min
4
Section
Newton's Laws of Motion
After describing and quantifying motion (weeks 2 and 3), we now start explaining it with Newton's three laws of motion. Knowledge of Newton's laws and the ability to apply them to various situations will allow us to explain much of the motion we observe in the world around us. They are also very important for analysing things (like bridges) that don't move much (a subject called Statics that's important in some Engineering programs). Because Newton's laws are so important, week 4 has five lessons, as well as slightly longer quizzes than the previous chapters.
7 vidéos (Total 35 min), 1 lecture, 6 quiz
7 vidéos
Lesson 4.2: Inertial and Non-inertial Frames6 min
Lesson 4.3: Newton's Third Law2 min
Lesson 4.4: Calculating Total Force8 min
Lesson 4.5: Practice Problems7 min
Historical Interlude3 min
The Syllogism1 min
1 lecture
Week 4 Study Aids10 min
6 exercices pour s'entraîner
Newton's Laws of Motion12 min
Inertial and Non-inertial Frames14 min
Newton's Third Law12 min
Calculating Total Force18 min
Practice Problems6 min
Week 4 Test26 min
4.4
Meilleurs avis
par RV•Jul 21st 2016
Great course. Good explanations and examples. The quizes and tests are not very easy sometimes, but they do you let think again. Very enjoyable! Just the course I was looking for a long time!
par CS•Nov 28th 2016
Great course, great professor, great opportunity of learning! Don't miss your chance...
Enseignants
Prof. Joe Wolfe
ProfessorSchool of Physics, Faculty of Science
Dr Elizabeth J. Angstmann
First Year Physics DirectorSchool of Physics, Faculty of Science
Mr Sebastian Fricke
Teacher and laboratory managerSchool of Physics, Faculty of Science
À propos de UNSW Australia (The University of New South Wales)
UNSW Sydney, based in Sydney Australia, was established in 1949 and is one of Australia’s leading research and teaching universities with more than 50,000 students from over 120 countries. UNSW Sydney aspires to provide students with an outstanding educational experience, which both reflects our strong traditions of excellence, innovation and social justice, and builds on our strengths in scientific, technological and professional disciplines.
Foire Aux Questions
When will I have access to the lectures and assignments?
Once you enroll for a Certificate, you’ll have access to all videos, quizzes, and programming assignments (if applicable). Peer review assignments can only be submitted and reviewed once your session has begun. If you choose to explore the course without purchasing, you may not be able to access certain assignments.
What will I get if I purchase the Certificate?
When you purchase a Certificate you get access to all course materials, including graded assignments. Upon completing the course, your electronic Certificate will be added to your Accomplishments page - from there, you can print your Certificate or add it to your LinkedIn profile. If you only want to read and view the course content, you can audit the course for free.
What is the refund policy?
Is financial aid available?
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