Comments for Fizzics http://mrmackenzie.co.uk Mr. Mackenzie Tue, 07 Oct 2008 16:17:53 +0000 http://wordpress.org/?v=2.6.2 Comment on projectiles - moving in 2 directions at once by Katie http://mrmackenzie.co.uk/2008/09/11/projectiles-moving-in-2-directions-at-once/#comment-26089 Katie Tue, 16 Sep 2008 15:37:10 +0000 http://mrmackenzie.co.uk/?p=311#comment-26089 Truely you are an ownosaurus!! I will correct my previous comment by saying it is Mr Mackenzie's truely wonderful picture and summary to help Katie.....better? Truely you are an ownosaurus!! I will correct my previous comment by saying it is Mr Mackenzie’s truely wonderful picture and summary to help Katie…..better?

]]> Comment on projectiles - moving in 2 directions at once by mrmackenzie http://mrmackenzie.co.uk/2008/09/11/projectiles-moving-in-2-directions-at-once/#comment-25909 mrmackenzie Mon, 15 Sep 2008 17:24:04 +0000 http://mrmackenzie.co.uk/?p=311#comment-25909 Is that you, David? I'm not too good at reading Gaelic signs! Is that you, David? I’m not too good at reading Gaelic signs!

]]> Comment on projectiles - moving in 2 directions at once by Daibhidh Mac a' Mhaoilein http://mrmackenzie.co.uk/2008/09/11/projectiles-moving-in-2-directions-at-once/#comment-25904 Daibhidh Mac a' Mhaoilein Mon, 15 Sep 2008 16:55:57 +0000 http://mrmackenzie.co.uk/?p=311#comment-25904 feasger math cimmar a tha sibh? feasger math
cimmar a tha sibh?

]]> Comment on projectiles - moving in 2 directions at once by mrmackenzie http://mrmackenzie.co.uk/2008/09/11/projectiles-moving-in-2-directions-at-once/#comment-25541 mrmackenzie Sat, 13 Sep 2008 18:25:19 +0000 http://mrmackenzie.co.uk/?p=311#comment-25541 Hmmm. Did Katie draw it? No. Did Katie write the summary underneath? No. It is pretty though! };8) Hmmm.

Did Katie draw it? No.
Did Katie write the summary underneath? No.

It is pretty though! };8)

]]> Comment on projectiles - moving in 2 directions at once by Katie http://mrmackenzie.co.uk/2008/09/11/projectiles-moving-in-2-directions-at-once/#comment-25489 Katie Sat, 13 Sep 2008 13:42:28 +0000 http://mrmackenzie.co.uk/?p=311#comment-25489 Katie's pretty diagram!! Helped me loads Katie’s pretty diagram!! Helped me loads

]]> Comment on significant figures by Nick Hood http://mrmackenzie.co.uk/2008/09/12/significant-figures/#comment-25349 Nick Hood Fri, 12 Sep 2008 20:40:15 +0000 http://mrmackenzie.co.uk/?p=316#comment-25349 A little activity to remind them might be to measure the three dimensions of, say, a table. Write these three lengths down with the correct measurement uncertainty. Now calculate the volume of the box which would exactly fit the table. They should see, physically, what a reasonable statement of the volume should be. Example: using a metre stick marked in mm, a table is 1.250 ± 0.005m by 0.621 ± 0.005m by 1.402 ± 0.005m. On my calculator, that's 1.0883025 cubic metres. What volume is represented by the 5? the 2? What difference in the answer if the last measurement was 1.403 ± 0.005m? I get a volume of 1.0890787500000001 cubic metres this time. You can abstract from there but hopefully they will consider the physical implication of the numbers they write down. I always say that the calculator is never to be trusted: every answer it produces always requires an interpretation. A little activity to remind them might be to measure the three dimensions of, say, a table. Write these three lengths down with the correct measurement uncertainty. Now calculate the volume of the box which would exactly fit the table.

They should see, physically, what a reasonable statement of the volume should be.

Example: using a metre stick marked in mm, a table is 1.250 ± 0.005m by 0.621 ± 0.005m by 1.402 ± 0.005m. On my calculator, that’s 1.0883025 cubic metres.

What volume is represented by the 5? the 2? What difference in the answer if the last measurement was 1.403 ± 0.005m? I get a volume of 1.0890787500000001 cubic metres this time.

You can abstract from there but hopefully they will consider the physical implication of the numbers they write down.

I always say that the calculator is never to be trusted: every answer it produces always requires an interpretation.

]]> Comment on standard grade revision by Abby http://mrmackenzie.co.uk/s4-prelim-revision/#comment-10504 Abby Fri, 23 May 2008 07:48:37 +0000 http://mrmackenzie.co.uk/s4-prelim-revision/#comment-10504 =D Yehh Rather Lacking In Notes Atm With All The Exams God Knows Where Half Of Them Have Gone ... Proved Very Useful And Organised Thanks! =D Yehh Rather Lacking In Notes Atm With All The Exams God Knows Where Half Of Them Have Gone … Proved Very Useful And Organised Thanks!

]]> Comment on standard grade revision by Chris Smith http://mrmackenzie.co.uk/s4-prelim-revision/#comment-10438 Chris Smith Thu, 22 May 2008 20:40:35 +0000 http://mrmackenzie.co.uk/s4-prelim-revision/#comment-10438 Superb site, far better than bitesize anyway. Summary notes are excellent and dead clear. Came across this site as I left all my notes jotters in school today, and my exam is tommorow. You've probably just saved my ass though, I'll let you know how I do though, haha. Thanks. Superb site, far better than bitesize anyway.
Summary notes are excellent and dead clear.
Came across this site as I left all my notes jotters in school today, and my exam is tommorow. You’ve probably just saved my ass though, I’ll let you know how I do though, haha.
Thanks.

]]> Comment on Int2 revision by Dom http://mrmackenzie.co.uk/int2-revision/#comment-10433 Dom Thu, 22 May 2008 20:20:17 +0000 http://mrmackenzie.co.uk/?page_id=276#comment-10433 Good stuff mate ;) Good stuff mate ;)

]]> Comment on Int2 revision by mrmackenzie http://mrmackenzie.co.uk/int2-revision/#comment-10429 mrmackenzie Thu, 22 May 2008 17:16:39 +0000 http://mrmackenzie.co.uk/?page_id=276#comment-10429 Good luck for tomorrow, Connor! Good luck for tomorrow, Connor!

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