Here are some notes to help with your revision for the electricity & energy test.
Thanks to Mr Noble for sharing his notes.
Your assignment will be based on an optoelectronics topic. You will get some ideas for practical work by downloading this booklet.
I have attached a copy of the Scholar notes for unit 3 of the CfE Higher course. You will find background physics with appropriate energy band explanations on pages 103-142.
Don’t print this document, it’s huge!
The Q&W unit assessment is next week. Here are the Scholar notes to help with your revision.
Remember that your unit assessment for P&W will take place at the end of this week. The attached notes might be helpful during your revision.
An electric field can be used to accelerate charged particles.
Conservation of energy tells us that
work done by the electric field = change in the particle’s kinetic energy
The speed of the particle can be determined if its charge and the accelerating voltage (potential difference) are known. The notes attached to the end of this post will show how to perform the calculation.
These short video clips show how to draw electric field lines for point charges and parallel plates, with example calculations for the work done by electric fields and the final speed of charged particles in electric fields.
Here are the solutions to the dynamics and space past papers questions.
Some of you asked for revision questions ahead of the unit assessment. Down load these problems from older past papers. I will add a secoond post with the answers shortly.
We’ve been looking at how the temperature of an object can affect it’s appearance. The attached handout recaps on our work in class and provides some examples of line spectra.
Before the holidays, we performed a set of experiments to determine the latent heat of fusion and latent heat of vaporisation of water. Next week, we’ll review that work and think about possible reasons why our results were not closer to the “book” values.
The attached pdf provides a summary of the topic.