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Question: Why do camels have big feet?

Question: Why do camels have big feet?. Pressure. Aim: To investigate how much pressure our feet exert on the ground. Method: Use graph paper to measure the area (cm 2 ) of one foot. Multiply by 2. Convert the area into m 2 (divide by 100000) Calculate your weight in N ewtons (F = m.g ).

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Question: Why do camels have big feet?

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  1. Question: Why do camels have big feet?

  2. Pressure Aim: To investigate how much pressure our feet exert on the ground. Method: • Use graph paper to measure the area (cm2) of one foot. • Multiply by 2. • Convert the area into m2(divide by 100000) • Calculate your weight in Newtons(F = m.g). • Divide your weight (N) by the area of both feet (m2).

  3. Pressure equation and units Pressure is a measure of how much force is applied over a certain area. • Pressure = Force (N) / Area (m2) • Units N/m2 • 1 N/m2 = 1Pa (pascal) • Task: Draw a triangle to show the relationship between force, area and pressure.

  4. Reducing pressure

  5. Air pressure Aim: To observe the effect and strength of air pressure. Method: • Fill an aluminium can with 1cm of water. • Boil water over bunsen. • Tip upside-down in ice cold tub of water.

  6. Atmospheric pressure • 1 atmosphere = 101.3kPa • About 100,000 N/ m2. • Equates to 10,000 kg/m2.

  7. Water pressure What happens when diving suits loose pressure? http://www.youtube.com/watch?v=LEY3fN4N3D8&feature=fvsr

  8. Deep sea fish are able to cope with high pressure.Task: Find out what the pressure is at a depth of 3000m where Hairy Angler fish live.

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