15 Questions
What is pressure defined as?
Pressure is defined as the pushing effect of a force.
How can you increase the pushing effect of a force when cutting clay?
You can increase the pushing effect of a force by increasing the force on the knife or using a sharper knife.
What is the equation linking pressure, force, and area?
The equation is: pressure = force / area.
What are the units of force, area, and pressure?
The unit of force is the newton, the unit of area is the meter squared, and the unit of pressure is newtons per meter squared (N/m²).
How does using a sharper knife affect pressure when cutting clay?
Using a sharper knife decreases the surface area in contact with the clay, which increases pressure.
Why does the camel not sink in the sand despite its weight?
The camel does not sink because its weight is distributed over a large area due to its large feet, reducing the pressure on the sand.
How does the woman on the bed of nails experience very small pressure from each nail?
The woman experiences small pressure from each nail because her weight is distributed over many hundreds of nails.
What happens to pressure when the area over which a force is applied decreases?
When the area decreases, the pressure increases.
How does the unit of pressure change when the area is measured in millimeters squared?
If the area is in millimeters squared, the unit of pressure would be newtons per millimeter squared (N/mm²).
Why does the wall of the dam become wider at the bottom compared to the top?
To make the dam stronger where the pressure from the water is greatest
What effect does gravity have on the pressure in a liquid as you go deeper?
Increases pressure
In which direction is the pressure exerted by particles in a liquid?
In random directions
What happens to the pressure in a liquid as you move deeper into it?
Pressure increases
Why does water coming out from lower levels of a dam have more force than that coming out from higher levels?
The lower water has higher pressure due to depth
How does the width of the dam wall help in dealing with pressure from water?
Strengthens the dam at points where water pressure is highest
Learn how to increase the pushing effect of a force by increasing the force applied or using a sharper tool. Explore the relationship between force, pressure, and energy in everyday scenarios.
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