Pressure Flashcards

1
Q

What is the pressure exerted by a man standing on one leg?

A

The pressure exerted by a man standing on one leg is twice the pressure he exerts when standing on two legs.

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2
Q

What are the correct units of pressure?

A

The correct units are Newtons per square metre.

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3
Q

How do you calculate pressure?

A

Pressure is calculated by force divided by area.

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4
Q

What are the correct units of force?

A

The correct units of force are Newtons

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5
Q

What is an example of an object that increases pressure?

A

A drawing pin increases the pressure at its point.

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6
Q

Which example reduces pressure on the ground the most?

A

Lying down flat reduces pressure on the ground the most.

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7
Q

What states of matter are fluids?

A

Liquids and gases are both fluids. Gases can flow as well as liquids.

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8
Q

The weight of a 100 N laser printer is spread over 0.5m2. What is the pressure it exerts?

A

The pressure exerted by a 100 N laser printer spread over 0.5m2 is 200 N/m2.

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9
Q

Where is there greatest pressure?

A

There is greatest pressure at the bottom of the ocean.

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