Card Set Information
flashcards for science final
acceleration of gravity
forces equal and opposite
newtons 3rd law
(change in velocity/change in time)
protons plus neutrons
(force) x (distance)
tendency for stationary objects to stay stationary, etc
(mass) x (velocity)
distance divided by time in a direction
D= (Ag x t^2) / 2
free fall distance
(mass) / (volume) =
mass x acceleration =
mass times height =
1/2 (mass) x (velocity)2
-273 degrees C
heat transfer by fluids
movement of heat
level of disorder
heat to raise 1 g of water to 1 degree F
calories per gram x degrees c
heat transfer by waves
heat transfer by touch
heat to raise 1 lb of water to 1 degree F
measure of hot and cold
film forming process
Die shaped liquid/melted plastics
melted TP pressured into molds
air blown parts from melted TP
blow molding process
heat hardened plastics
pulling mode strength
bending mode strength
strength to resist pressing mode=
liquid thickness (resisting flow)
sag under pressure/room temp is known as:
TP softening/ flow temperature is called:
resistence to gas through plastic
sagging under heat and pressure=
heat distortion temp
ability to stretch-
bottles and milk containers=
pipe foam insulation, toys
foam insulation and cups
LDPE, Low Density Polyethylene
Pipe and glass replacement is made up of:
High Density Polyethylene, or HDPE
Pipe and Siding is made up of:
coke, water bottles, clothing-
PETE, Polyethylene Terephthalate
balanced forces on object
what is the shape of planetary orbitals around our sun?
The planet where you would weigh the less=
pluto, also mercury
the orbit of each planet is an ellipse and the sun is at one focus, what law is this?
Keplars 1st law
When does the kinetic energy of planetary orbital equal the potential energy? when is ke=pe?
when earth is half way back towards the sun
a collapsed star, gravitational pull, huge mass, huge gravity
Which waves are hazardous, short waves or long waves?
the speed at which a planet orbits around another mass
what is the nearest matching planet in mass vs earth?
venus, escape velocity = 10.4km/s
orbital velocity quanity for earth?
escape velocity for earth?
on which planet would you weigh the most?
what are four properties of light?
reflection, refraction, transmission, absorption
range of visible human vision?