The second part of this problem is shorter. Watch here or get it on iTunes.
Youngs Slits example 1(b) from mr mackenzie on Vimeo.
mrmackenzie
Example of Young’s slits
Here is an example of a Young’s slits problem. The next post will show the 2nd part of the problem.
Youngs Slits example 1(a) from mr mackenzie on Vimeo.
Free physics software
I’ve had an email from Yenka to say that they are now offering many of their products for home use – free of charge! I think Yenka is the new name for Crocodile Clips, the company who made Crocodile Physics and Crocodile Technology. Their software allows you to create your own experiments to learn about
- motion – SG transport, Int2 unit1, Higher unit1, AH unit1
- electricity – SG using electricity, Int2 unit1, Higher unit2, AH unit2
- light and sound – SG health physics, Int2 unit3, Higher unit3, AH unit3
- electronics – Int1 applied practical electronics, SG electronics, Int2 unit2, Higher unit2
They also have some chemistry products you might find helpful.
The software is free but you can only use it at home. Why not download it and see if you find it useful.
higher homework for 6th March 2009
Here is your homework exercise on the introductory work we have covered on operational amplifiers. Please hand this exercise in no later than Friday 6th March.
Higher HW for Thursday 29 January
Here is your next homework exercise. You must hand this in no later than Thursday 29th January if you want to have it corrected and receive feedback before the Physics prelim on Monday 2nd February. The questions are on AC electricity and charging/discharging of capacitors.
charging & discharging capacitors
We looked at factors affecting the shape of the charging & discharging curves of capacitors today. Here is a video I found on youtube that covers some of the areas we discussed. Ignore the maths bit at the end, we won’t need that. Notice how the man in the film uses a lightbulb as a way of showing when the current is large or small, clever, eh?
using an oscilloscope
Although we’ve completed the ac section of unit 2, some of you might want to get some practice at using an oscilloscope to determine the frequency & peak voltage of a signal.
Use the link below to try using the virtual oscilloscope I had on the SMARTBoard. You can view different signals by connecting different coloured leads to the inputs.