Welcome to the physics portion of the course!
I know many of you think "Physics" is a very dark, scary subject. I was very much looking forward to proving you wrong!! It would be more exciting to do so in person but I still think I can show you from here that physics is not as scary as you think. All I ask is you give me a chance to do so. Keep an open mind and if you find yourself getting stuck, ask a friend or shoot me an email.
So what is Energy? It is thought that the total amount of energy in the ENTIRE UNIVERSE is constant. Energy can take different forms, and when we change energy from one type to another type we say we are doing Work. Energy is in literally everything you see and do.
This class will focus mostly on the following types of energy:
Your assignment today is firstly to watch these two short videos:
Then, please submit between 5 and 10 different real life situations where energy is changing from one form to another.
Intro to Energy Quiz Key
Since there are unlimited options for this I cannot provide an answer key. I am looking for any situation where energy changes from one form to another, excluding the examples already given in the videos. I look forward to reading all of your answers!
**Quick note: This week has been rather hectic. In the future my goal is to post all assignments by 10am sharp on Mon/Wed, and post answer keys at 3pm sharp on Tues/Thurs. However, NEXT WEEK Monday is a holiday! So I will be posting assignments Tues/Thus and answers Wed/Fri.**
Happy Easter everyone! I hope everyone had a great long weekend with the lovely weather.
Today we are learning about a specific type of energy - kinetic energy. This is the energy of movement. You can calculate the kinetic energy of ANY object if you know the mass and the speed (or velocity) of the object.
The equation for kinetic energy is Ek = ½ mv2
Energy is measured in Joules (J)
Your assignment today:
Kinetic Energy Quiz Key
Hello Everyone, I hope you are all safe and healthy.
Today's lesson is on Potential Energy. There are actually lots of different types of potential energy - it is just stored energy. Many things store energy such as:
These all store a lot of energy. However, when you lift something you are also storing energy because when you drop it it will spend that stored energy to go faster and faster. Lifting something stores gravitational potential energy which we will be focusing on today.
The equation for gravitational potential energy is Ep = mgh
Your assignment today:
Potential Energy Quiz Key
Happy Monday everyone!
I hope everyone had a safe and healthy weekend. Today we are putting together all the Energy knowledge we've gained so far to explore one of the most important topics in all of physics: Conservation of Energy. The good news is you've already worked on this! The last question on our previous quiz had Georgia jumping off a diving board and ALL her Potential Energy converted into Kinetic Energy. This is the most important idea - energy cannot be created or destroyed, it can only change forms. So (if we ignore air resistance) it MUST be true that all of her potential energy at the top of the diving board turned into kinetic energy!
Today:
Conservation of Energy Quiz Key
Today's lesson is on Thermal Energy from Friction and how it relates to Conservation of Energy. Heat will always be on the "Ef" or "Energy Final" side of the equation. Please watch the video below and complete the assignment through MS Teams. Message me directly or post in the other channel if you have any questions!
Thermal Energy Quiz Key
Today we have a very important class that involves NO calculations! We are looking at the TYPES of energy we humans collect for ourselves to use in our homes and businesses as electricity!
In your assignment today (on MS Teams) I have listed some commonly known types of energy:
Your task is to look at each way we generate electrical energy and decide which TYPE of energy are we harvesting in each case. I'll give you a free answer and an example here - Wind power generation is harvesting KINETIC energy because the wind is moving and we turn that movement into electricity. Another tip for you - anything that burns is using chemical potential energy to create heat. Good luck and let me know if you have any questions!
Firstly, if you haven't watched the "Graphing Energy Types Over Time" video (below) please watch it now!!
Secondly, below is your final project for the Energy unit. I would have liked to do this in school with the whiteboards but you guys are so creative I'm looking forward to seeing your videos. *Please read the document carefully and let me know if you have any questions. I will host a tutorial/discussion session at noon on Wednesday (tomorrow) so bring your questions!*
Lastly, if you are having a difficult time with the Energy unit this project can be made very simple! Pick a situation with only two energy types, such as a snowboarder going down a hill. If you are having a fun time with the Energy unit then challenge yourself by thinking of a situation with 3 or 4 different types of energy!
Graphing Energy Types Over Time