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# Pressure and moments4

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Pressure and moments

Pressure and moments

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• 1. Pressure and Moments By M H
• 2. Contents
• Pressure……………………………………..Slide 3
• How to work out Pressure…………….Slide 4
• Moments……………..........................Slide 5
• How to work out Moments……………Slide 6
• The end………………………………………Slide 7
• 3. Pressure
• Pressure is the force per unit area applied in a direction perpendicular to the surface of an object.
• Pressure is very useful when trying to know what your weight is and going to space because you have to know how far you can be from a planet and not being attracted or bounced of it’s gravitational force.
• Pressure is useful when trying to know what someone’s blood pressure is. If we never knew what pressure was then people’s lives could be at risk
• 4. How to work out pressure
• Pressure = fore divided by area.
• 5. Moments
• Forces that act on objects that have a fixed point - such as the hinge of a door, or the axle of a wheel - may make that object rotate. We call the turning effect of a force the moment.
• 6. How to work out a moment
• Moment=Force times the distance form the pivot.
D F M
• 7. The End