Forces, pressure Flashcards
Why is there more pressure when you dive deeper
The deeper you descend the more water you have above you, exerting more pressure on your body
A spring can be,
Stretched (made longer)
Compressed (made shorter)
Robert Hooke experimented on stretching springs he discovered that if?
If the same force is added to a spring each time it’s extension is by the same length each time
The moment of a force is given by…
Force applied x distance from the pivot
What is a pivot?
A pivot is the point around which rotation happens, when a force acts on something that has a pivot, it creates a moment
What is pressure?
Pressure is the amount of force applied on an object of a certain surface area
High pressure,
Is a force applied over a very small area
The pressure in a liquid,
Is the same everywhere
In the system a machine that uses liquid to transmit a force is called?
Hydraulic system
The simplest type of hydraulic system is made of?
Two pistons