"Kinematics is simply - the study of motion..."
Today we are going to do an introduction to this unit and start learning some key concepts related to motion. The downloads are below...our first topic, after the introduction, is Vectors & Scalars
Downloads / Lessons
Today we are finishing up our work on the Concept Maps (Electricity Production) and will be working on our review packages.
The test is on Wednesday, Sept. 30, 2015.
1. Finish Concept Map (if not completed yesterday)
2. Work period: Review Package (+ additional review)- TEST on Tuesday, Feb. 27, 2015
Amazing Article about Electricity production by placing turbines and generators within sewer systems...read the article and watch the video and post a comment in this comment section.
Today we will work a little on completing the Transformer Problems that we started on Friday (they are due tomorrow at the end of the day). We will also then start work on developing our Electricity Production Concept Map Activity.
The information will help you understand some of the energy sources that are on the list...
CLICK HERE to get more information.
Today we finished the examples and reviewed the concept of transformers. We then had a work period for solving problems and questions related to transformers using the transformer equation.
Transformers are used to step-up (increase) or step-down (decrease) voltage. They are extremely important in our everyday lives. They are used to step-up voltage at a power generating station so that electricity can travel long distances with very little energy loss (low current flow) to your neighbourhood and then is stepped back down so you can use it in your home at safe voltages and high current. They are used in your cell-phone and computer chargers as well - look at the back and you'll see. But...how do they work?
Today we completed our investigation into Faraday's Law of Electromagnetic Induction and then we created some simple generators which use this principle. We also looked at how electricity is produced from hydro plants, fossil fuel plants and wind turbines.
Today we finished up our speakers activity (please post the video links in the comment section of this site).
Demonstration of Faraday's Law of Electromagnetic Induction - Your task: write out the definition of EMF and electromagnetic induction.
The motor principle is basically the FORCE that a current carrying wire experiences when interacting with an EXTERNAL MAGNETIC FIELD. Oersted's principle says that a wire carrying electricity has a magnetic field around it - so if there is another external field near it then the wire will experience either a repulsive force or attractive force (the interaction of the two magnetic fields).
The video below shows how a coiled wire with electricity running through it is attracted to and repulsed by an external magnetic field (depends on the direction of the current in the wire)