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10Science1 08 Paenga-wh ā wh ā 2014. Usain Bolt runs 200 metres in 19.5 seconds. What was his speed in m/s (m.s -1 )?. Jeannette walks her horse for three hours and covers 24km. What is her speed in km/ hr ? (km.hr -1 ). Jas Cook rides her bike 1500m in 300 seconds. How many km is 1500m? - PowerPoint PPT Presentation
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10Science1 08 Paenga-whāwhā 2014
10Science1 08 Paenga-whāwhā 2014
What we will do What we will learnPreliminaries and roll The importance of starting
well
Revisit friction, drag, air resistance Words that can be swapped
Tell stories from vel/time graphs How to extract info from graphs
PLOT graphs of distance vs time How to visualise numbers
Practise speed, distance and time questions
How to use our skills on test-type questions
Tell a story from a distance/time graph
How to extract info from graphs
Revisit our Y9 energy knowledge Some main energy types
HRT on our Scipad pages How to make good use of time
Get our Scipads marked (and, perhaps, some workbooks marked too)
How to stay up to date AND to PROVE that we are
HW item Skills practiced Scipad pages 124 – 143 excl 126 and 127Due Monday the 10th of March 14
Genetics and Variation
Scipad pages 99 to 123 but not 108, 118, 121Due Wed the 16th of April 2014
Forces and Motion
Usain Bolt runs 200 metres in 19.5 seconds. What was his speed in m/s (m.s-1)?
Jeannette walks her horse for three hours and covers 24km. What is her speed in km/hr? (km.hr-1)
Jas Cook rides her bike 1500m in 300 seconds.(a)How many km is 1500m?(b)How many minutes is 300
sec?(c)What is her speed in m/s (m.s-
1)?
Gypsy the dog trots along at 2.5 m.s-1 for 60 seconds. How far up the road did she trot?
Mr Dean winds in 200 metres of anchor rope at 20 cm.s-1. How much time did it take to wind in the rope?
Mr H goes cycling and he covers these distances in the times given.Time (hours) Distance (km)
0 0
1 2
2 9
3 22
4 46
5 98
Draw a distance/time graph of his trip. Use it to describe his speed and explain his move in terms of forces on him and his bike.