PODCAST

National 5 – fizzics

Sinclair Mackenzie

with mr mackenzie

education k-12

All Episodes

electric field line patterns for point charges and...

National 5 – fizzics ·

2021/11/23

These short video clips show how to draw electric field lines for point charges and parallel plates. Q1(a) Electric fields lines around point charges from mr mackenzie on Vimeo. Q1b – Electric field between parallel plates from mr mackenzie on Vimeo.

en-GB

0:00:01

forces

National 5 – fizzics ·

2021/11/13

We’ve been looking at forces for the past two weeks. Here are some notes and videos to help you learn more about this topic. Newton’s 1st Law animation showing effects of air resistance Friction: here are 3 clips about friction from the BBC programme Bang goes the Theory //www.youtube.com/watch?v=qhpXnGaYmdA //www.youtube.com/watch?v=XNOEP1XIFiM and look what happens when ... Read more

en-GB

drawing scale diagrams

National 5 – fizzics ·

2021/10/02

Last week we learned about vectors and I showed you the scale diagram method for solving a vector problem, such as determining the displacement of an object after a journey. The video is a short re-cap of the scale diagram technique.

en-GB

applications of satellites

National 5 – fizzics ·

2020/04/14

By now you should have watched the video about satellites. This screenshot showing a satellite passing over the Highlands was taken from about 17 minutes into the programme – did you notice at the time? It was quite eye-opening to see just how much modern society relies on ... Read more

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re-entering the atmosphere

National 5 – fizzics ·

2020/04/14

In space there is no air resistance to oppose motion, so the Space Shuttle orbiter could travel at very high speeds, up to 17,000 mph! At these speeds, the orbiter experienced enormous air resistance as it descended into the Earth’s atmosphere at the end of its mission. Air resistance is just like any other form ... Read more

en-GB

x-rays

National 5 – fizzics ·

2019/09/02

X-rays are a form of electromagnetic radiation. They have a much higher frequency than visible light or ultraviolet. The diagram below, taken from Wikipedia, shows where x-rays sit in the electromagnetic spectrum. image by Materialscientist Wilhelm Röntgen discovered x-rays and the image below is the first x-ray image ever taken. It shows Mrs. Röntgen’s hand and wedding ring. ... Read more

en-GB

dosimetry: absorbed dose and equivalent dose

National 5 – fizzics ·

2018/09/07

This week, we’ve looked at calculating radiation doses. The absorbed dose D, measured in Grays (Gy), takes into account the energy E absorbed and the mass m of the absorbing tissue. The higher the energy, the greater the absorbed dose. If you are wondering why the absorbing mass is important, consider the different masses of ... Read more

en-GB

0:00:01

how to do half-life questions

National 5 – fizzics ·

2018/08/30

We started looking at half-life today. The attached file walks you through different types of half-life problem. There are some questions for you to try along they way. The answers are at the end, please don’t cheat!

en-GB

geiger-müller tube

National 5 – fizzics ·

2018/08/29

We’ve examined the operation of a Geiger-Müller counter as part of the radiation topic. image by Theresa Knott The Geiger-Müller (GM) counter is used to detect ionising radiation such as alpha and beta particles or gamma rays. The radiation enters through a very thin window at one end of the tube. This window is usually made ... Read more

en-GB

0:00:01

x-rays

National 5 – fizzics ·

2018/08/21

en-GB

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National 5 – fizzics

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