What is viscosity?
Fluids resistance to flow
If the viscosity is high, this means
The liquids thicker and and flows slower.
When heated, a gasses visocisty changes...
to increase the viscosity
When heatead a liquids viscoisty changes
To decrease the viscosity
The----- Is the speed at which a liquid flows
The property of fluids that makes the particles hold together because they are attractedto each other.
The effect that the particles at the surface attract each other and form a skin.
The attraction between particles of a fluid and another substance so that the fluid clings to it
The deeper you go in a gas or liquid the pressure....
The higher you go there is...
1 atmospheaarealaeeer. Love the spelling. Love it.
The study of pressure in gases.
The study of pressure in water
Every 10 m deeper in water the pressure....
increases by 1 atmossphehhhherre. Here we go again....Pardon my lazyiness to spell stuff right :(
Is the tendancy for objects to rise or float in a fluid, occurs because of differences in density of the object and fluid
The force of the fluid pushing up on an object
Hot air rises because of buoyant force on the hot air, this is called....
Objcets float or sink based on wether the...
Buoyant force is greater or less than the gravitational force.
Makes use of a gas or liquid to do work.
When pressure is applied at one point in a fluid in an enclosed system that pressure is...... and its called?
transmitted equally throughout the entire system, this is called static pressure
The pressure that is exerted in a fluid in motion
A system that use pressure in liquids to do work
A_____ puts the liquid under pressure
A___ controls the passage of liquid thro a pipe
A device thats used to compress gas and use it for work. bEST DEFINTIOANTA MANG.
Pneumatic systems are..
2 common problems in Pneumatic systems
1. loss of pressure due to leaks 2. Reductionof the gas flow due to blockage of the passageway
The____transports blood around the body
Circulatory system (Heart)
The heart works like a _____ in the hydrailoc system
Whose the coolest kid you know?
The _____ system brings air into the body and removes carbon dioxide from the body
____ Changes the air pressure to make the air move around the body.
Breathing. *******. :D
Everytime the heart beats..
The pressure increases so it can move blood all around the body.
I can putcha in a ____ somewhere down in aspen.
Log cabin- Know your Tpain guys Mr G said so.
This ray has the highest frequency, also meaning it has the shortest___
Gamma ray, wavelength
This ray can be used to kill cancer cells
_____ is the ransmission of energy in the form of waves.
Which wave has the lowest frequency but the longest wavelength and is used for tv broadcasting,radio, microwaves and radar
Oooo toughy...radio waves
What are the types of waves used in an MRI
This wave is used with satelites
3 examples of uses for infrared waves
Remote control, can read cd roms on computer, Heat lamps :D
This wave can create vitamin D in your body, But also can cause skin cancer and sunburns and damage to the surface of your eyes.
3 uses for UV waves
Fluorescent materials can absorb ultraviolet waves and emit the energy as visible light therefor its used in some police crap lol. Kills bacteria, provides heat and also vitamin D.
3 uses for X rays
Can take pictures inside your body and inside of big mechanical stuff(airreo planes) used for taking pictures of organs and other systems in your body too....
A green shirt appears green cuzz....
It reflects green and absorbs the other colours
A black shirt appears blak cauuuz....
Absorbs all colours
A white shirt appears white cuzz
reflects all colours
The three primary additive colours aree...
red green n blue, because with proper amounts can create white light.
State the law of reflection
The angle of reflection = the angle of incidence.
_____ occures when a light wave strikes an object and bounces off
The passing of light as it goes throw multiple prisms...something like that lol
Light rays hit a concave mirrior and
reflect to converge
Light rays hit a convex mirror and
reflect to diverge
Light rays pass thro a convex lens and
refract to converge
Light rays pass thro a concave lens and
refract to diverge
List the colours of the rainbow ! :D (AKA: Rainbows nickname)
A prism causes light to split into a
A material that transmits NO light.
A material that transmits all light
A material that transmits most lifht but reflects and refreacts somee.
When light travels into a more dense material (Water) it ...
slows down and bends toward the normal
When light travels from a dense material (Water) into a less dense material (air) it
speeds up and bends away from the normal.
Why does a white page not reflect like a mirror?
Because its not smoooooveeetthhhh enuf.
The refraction of light in air can result in a
The amount of force acting per given area
two convex lenses
A refracting telescope uses
two convex lenses
A reflecting telescope uses
a concave mirror, a plane mirror and a convex lenses
This part of the eye does the most focusing, its an transparent material.And it lets light through it easily:D obsviously.... :P
We refer to this as the colour of someones eyes but it helps focus the pupil to let in the right amount of light.
A whole in the center of your eye that lets light travel thro it easily.
When its dim out the pupil
expands to let more light in
When its bright out the pupil
contracts to let less light in
White part of our eyes, opaque tissue called
Behind the pupil is a.....
convex lens that is flexible enough to change its shape.
Light rays pass through the lens and focus onto the screen at the back of the eye called the
Cells in the retina convert the light rays into electrical signals which are sent to the brain through the...
These cells are used to detect shades of light and dark
These cells are used to detect colour