Physics Flashcards
What are the properties of gas
Volume
Pressure
Temperature
What is boyles law
The pressure and volume of gas are inversely proportional to eachother
What equation is this p1v1:p2v2
Boyles law
What is Charles law
It’s the law about how gas expands
V / t
What is an isobar
It is the volume of gas and temperature at a constant pressure is know as an isobar or isotopecs and it always gives a straight line on a graph
What is gay Lussacs law
The pressure exerted by a gass of a given mass is directionally proportional to the temperature
What is the combined gas laws
P1xv1 / t1. : P2xv2 /t2
What is a adibatic process
The thermodynamic process in Wich there is no exchange of heat during expansion and compression
What is the ideal gas law
Ideal gas molecules do not attract or repel each other
What is is the other ideal gas law
Ideal gas molecules themselves take up no volume
What is Dalton’s law
The total pressure of a mixture of gases is equal to the sun of partial pressures of the individual component gases
What is a ray
A ray is the direction of the path taken by light
What is a beam
Is a stream of light energy they can diverge converging or parallel
What properties do shadows have
Penumbra : partial shadow
Umbra : main shadow
On a plane mirror what are its properties
Incident ray
Reflected ray
Angle of incidence
Angle of reflection
What is a real image
Like an image projected by a projector
What is a virtual image
An image you see in a mirror or magnifying glass
What is parallax Error
It’s where you see a pointer in a different position like on a gauge cause your not directly above it
What is refraction
Refraction is the change in the direction of a wave passing from one medium to another
What is snells law
It is the change of a beam when it goes into water or out of it
What is the refractive index
It describes how fast light travels through a material
What is total internal reflection
It is a phenomenon where light will change angle coming out of a medium until a critical point where it bounces of the bottom surface reflecting internally
What are the different types of mirrors
Parabolic
Curved
Flat
Concave
Spherical
What are the common terms of lenses
Principle axis
Principle focus
Focal length
Optical centre
Centre of curvature
What is a converging lens
It’s a lens that concentrates scattered rays to a principle focus
What is a diverging lens
It takes a concentrated principle focus and spreads it out
Give an example of a virtual image
Magnifying glass image or a mirror
What is a mechanical wave
Is an oscillation of matter and transfers energy through a medium like shaking a box of sand
What is a longitudinal wave
Sound and pressure waves and is parallel to the motion of energy
What is a transverse wave
When the movement of the particles at right angles examples being light and waves at sea
What is an eltromagentic wave
They don’t need a medium to travel and they are transverse
What is de brogikes hypothesis
It’s the theory of how matter behaves as waves
What is sound
It refers to how loud or soft a noise is through the disturbance of matter usually air
What does loudness looks like in a wave
It looks like a taller wave
What does pitch look like on a wave
The amount of peaks increase (frequency)
What is a progressive wave
They travel continuously in a certain direction in a medium
What is a stationary wave
They are produced when two similar waves collide and appear stationary
How do waves reflect
They can hit objects then bend and reverse going from hill to a dip on collision and heading back
What is the superstition principle hint (waves colliding )
When a pulse has the same shape from two different directions it will collide it amplitudes will be higher than the the amplitudes of the originals and then will recover their individual shapes and pass through eacother
What is the Doppler effect
As an object moves like a truck the sounds compress to a high frequency so it sounds louder coming towards you and when it passes it sounds quiter and gradually fades
Elements
Only contain one type of atom
Compounds
Contain two or more types of atoms
What is a molecule
Is the smallest thing a substance can be divided into
What is a molecule
Is the smallest thing a substance can be divided into
How many electrons in the first shell or k
2
What’s is the equation for pressure at the base of a colum
Pxgxh. Pressure x gravity x height
Or
Density x volume x gravity
—————————————
Base area
What is a hydrometer used for
Measuring specific density ( looks like a tube with a float in it )
What is momentum
Mass x velcoity
What is velcoity
Displacement / time
How to convert Celsius to kelvin
+273.15
