Light & Beyond

Inductiveload, NASA [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons

The S3 Physics Block covers Beyond the Visible after covering light. Attached is the outcomes that you should cover in your course.

Revision Mind Map

This is part of a series of brilliant Mind Maps made by Miss Milner for the N5 Physics Course. You ought to be able to fill it all in!

Uses of EM Waves

One of the uses of UV radiation is a security feature of bank notes. Shining UV radiation on to the bank note causes them to fluoresce (the atoms in the material take in the UV radiation and re-emits it as light which we can see)

Look at how advanced the fluorescing shapes and colours are.

Experiments- Uses of UV to check the authenticity of bank notes

IR cameras are used by the police to track for criminals at night but they are also really useful to the fire brigade at finding people in smoked filled buildings, you can’t hide behind a bin bag and even a hand print can leave a “heat print”.

You can’t hide in a bin bag if someone has the IR camera on you!

Did you know you can be on the radio? Not very musical but it can drown out Radio Scotland.

Do try this at home, use cheese marshmallows or chocolate but you need to take the turntable out and DON’T put things on a metal tray!

Waves S3 Homework Book

The electromagnetic (em) spectrum is a collection of transverse waves that all travel at the same speed in air, the speed of light, 300 000 000 m/s. (equivalent to 7.5 times round the Earth every second)

One of the waves is VISIBLE LIGHT

A=amplitude λ = wavelength

Others are RADIO & TV, MICROWAVE.

The others are INFRA-RED, ULTRA VIOLET, X-RAYS, GAMMA WAVES.

The only difference between each of these waves is their wavelength or frequency. They all fit the formula

Speed= frequency × wavelength

v=f λ

The order is important and to remember it use the following rhyme!

Randy                  Radio & TV

Monkeys              Microwaves

Invade                 Infrared

Venezuela           Visible

Using                   Ultraviolet

Xylophone           X-rays

Gunships             Gamma

Period, T, is the time for one wave to pass a point and is measured in seconds.

Frequency, f is the number of waves being produced or passing a point per second. Frequency is measured in Hertz (Hz)

Here are lots of resources for you to check and practice. My utmost apologies if I have not credited people for sending this material. As soon as I know who you are I will thank you personally.

REVISION GAMES FOR WAVES

https://wordwall.net/resource/9421925

Forces 2020

Lockerbie Academy’s S2 Forces Unit Material, containing the Assessed Practical and details for plotting graphs in Excel.

Wow! This is an important Physics topic, your first topic in the S2 physics course. All the info you cover in class is given below. We will start at the beginning but can rush through the bits that you’ve covered in primary.

 

This sheet gives you details of what need to know for this block and for the test.

 

Forces powerpoint (unmodified)

Forces iop (forces specs only)

 

This is the workbook that you will use in class, get your own copy here, or use it to copy up what you’ve missed.

Here is the copy of the homework booklet, you can make a start on it whenever you’ve time and get ahead. Make sure you hand homework in on time.

Hmwk PieceWk NoS2 Physics Homework Tasks
11Complete a title page called FORCES
21In the back of your jotter write a piece “What I learned about myself in S1 Science” This is not the topics that you covered- I know those, but what did you learn about yourself, your ability to think for yourself, try tasks etc. What skills have you learned .
32Forces Walk
4Hookes Law table & Hookes Law graph (this is an assessment piece)
5Literacy Task
6Answering the mass and weight questions
1st June 2019AllRevise the work you’ve completed this week and previous weeks

If you haven’t got results for the Hooke’s Law Assessment use the ones below. Copy the results into Excel, find the average extension using the formula =average(range) . Then plot a graph of Weight against average extension.

WeightExtension (cm)Extension (cm)
(N)‘/1‘/2
000
12.42.3
24.84.8
37.27.3
49.69.6
51212.1
614.414.2
716.816.5
819.219.1
921.621.5
102423.9

There is a separate post on EXCEL with details of how to create a table of results and plot a graph in Excel, which is useful for all students studying Physics, and other Sciences too- a useful life skill.

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May 2020