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True or False?
Pressure is a force.
What is pressure?
Give an example of pressure in real life.
What needs a high pressure?
What needs a low pressure?
What is pressure measured in?
How do you work out pressure?
What are pascals?
What is the pressure on the floor when a man of weight 750 N stands on the area of 250 cm²?
The weight of a man is 900 N. The pressure upon the floor is 4 N/cm². What is the area of his shoes?
Is there air pressure in space?
What is atmospheric pressure?
Complete these sentences:
-The ____ particles there are in one space, the higher the ______
-The more ________ there are, the greater the pressure is
-The more _____ there is in the collision, the ______ the pressure
-The _____ the area the collisions affect, the greater the ______ is
What happens when you compress a gas?
Can liquids be compressed?
Why does the pressure increase with depth in water?
Fill in the gaps:
-pressure at any ___ depth is always the _____
-the ________ increases as the depth ________
-the pressure acts in ___ ________
What are hydraulics?
Why do hydraulic machines work?
How does a hydraulic machine work?
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This is a diagram of a hydraulic machine:
Here is an animation of a hydraulic machine:
