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# Do now! - PowerPoint PPT Presentation

Do now!. Can you stick the summary and target sheets in please?. Oh no!. http://wm-od.cdn.turner.com/cnn/big/bestoftv/2007/04/06/roberts.the.shot.cnn.ws.wmv. Spread the force over a greater area. Camels. Snow shoes. Caterpillar tracks. House foundations. I had a dream. Death?. Sharp?.

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Can you stick the summary and target sheets in please?

http://wm-od.cdn.turner.com/cnn/big/bestoftv/2007/04/06/roberts.the.shot.cnn.ws.wmv

N

Pressure = Force

Area

N/m2 or Pa

m2

F

N

Pressure = Force

Area

P

A

x

N/m2 or Pa

m2

A woman of weight 600N and one of her shoes has an area of 150 cm2 A man of mass 750 N has a shoe area of 360 cm2 (one shoe). What is the pressure beneath their feet?

A woman of weight 600N and one of her shoes has an area of 150 cm2 A man of mass 750 N has a shoe area of 360 cm2 (one shoe). What is the pressure beneath their feet?

Angelina pressure = force/area = 600/(2 x 150) = 2 Pa

Brad pressure = force/area = 750/(2 x 360) = 1.05 Pa

Can you do the calculations carefully and neatly on the graph paper to show your pressure (don’t forget you have two feet!) and stick it in your book

• You are going to design a poster either

• Warning about global warming and its consequences

Or

2. Saying that global warming is not happening and that it is a myth

Your poster has to include at least 3 facts, and be eye-catching

Due Wednesday 25th March

• Mass = 2000kg

• Weight = mg = 2000x10 = 20000N

• Area = ?

• Pressure = ?

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