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
Others are RADIO & TV,
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
The order is important and to
remember it use the following rhyme!
Randy Radio & TV
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.
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.
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.
S2 Physics Homework Tasks
Complete a title page called FORCES
In 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 .
Hookes Law table & Hookes Law graph (this is an assessment piece)
Answering the mass and weight questions
1st June 2019
Revise 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.
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.