Chapter 3 PS Flashcards
Atom
Smallest particle of an element
Molecules
Atoms combine and form molecules
Compound
2 or more atoms coming together to form something new
Cohesion
When molecules stick together
Adhesion
When water is attracted to other compounds
Brownian motion
Small particles are moving in a random zig zag motion and their speed is connected to their temperature
Diffusion
Occurs from high to low concentration due to Brownian motion
Osmosis
Diffusion across a semipermeable membrane
Amorphous
A disorganized structure to a solid
Elasticity
If you bend something and it comes back to orig shape
Plasticity
If it doesn’t come back to its orig shape when bent and is partially deformed
Shear
To cut
Torsion
Twisting, the ability to twist something
Capillary action
Demonstration of adhesive property of water
Equation for pressure
Force x area
Pascal/Pa
A unit of pressure named after Blaise Pascal
Pascals principle
Pressures in a fluid press equally in all directions (gas or fluid)
Boyles law
If volume goes down pressure goes up
Charles law
If. Temperature goes up volume goes up. If you increase the temperature are you increase the volume
Siphoning liquid
Atmosphere sucks water up
Barometer
Used to measure air pressure
Archimedes principle
The buoyant force is equal to the weight of water pushed away.
Bernoulli’s principle
The pressure exerted by a gas or fluid, the pressure decreases as the speed of the fluid increasesso it’s like when the atmospheric pressure decreases on top when you blow on it and the bottom pressure wins and pushes the paper up
