Tagged: Newton’s laws

Orbits - Physics Stop

Marcus Wilson Nov 30, 2009

Going back to my comments on the Karman line (100 km about the earth's surface), I think it's worth commenting a bit 'being in orbit' means. We are familiar with the fact that if we drop something it accelerates downwards and hits the ground. If we throw something away from us, it will still accelerate downwards and hit … Read More

Scholarship physics questions - Physics Stop

Marcus Wilson Sep 17, 2009

I've just been putting together a presentation for final year school children on the NZ scholarship physics exam.   NZ Scholarship is awarded to the top 3% or so of students in a particular subject in a particular year, and there is some big money up for grabs.But the exam questions for scholarship are hard.  Really.  I find them hard (remember I lecture … Read More

The scientific method - Physics Stop

Marcus Wilson Aug 28, 2009

This morning we had a school group visit us from Whakatane - about 30 year 10 students (14 and 15 year olds) - they carried out some activities in Chemistry, Earth Sciences and Physics. I led them (as two groups) in a physics activity involving catapults.After doing the boring bit (talking about how energy is transferred from one form to … Read More