PHSC test 1

giga

giga

to the 9

mega

to the 6

kilo

to the 3

hecto

to the 2

deka

to the 1

deci

to the -1

centi

to the -2

milli

to the -3

speed

rate of change of an object in any direction

velocity

speed of something in a specific direction

acceleration

rate of change of velocity

force

mass X acceleration

acceleration

final velocity - initial velocity divided by the time

gravitational force

gravitation(6.67X10 to the -11 NM/kg^2)X mass 1 X mass 2 divided by distance squared

weight

mass X gravity

centripetal force

circular motion

freefall

fall to earth without air resistance

freefall

distance = 1/2 average acceleration X time squared

newtons 1st law

every object at rest will stay at rest/motion unless acted on by an outside force

newtons first law

inertia

newtons 2nd law

force=mass X acceleration

newtons 3rd law

equal and opposite reaction for every action

potential

stored energy

kenetic

movement energy

work

up/down not side to side

work

force X distance

potential energy

work against gravity

potential energy

mass X gravitational field X height

energy

the abilty to do work

energy

joules measures

gained kinetic energy

lost potential energy

molecular

external

internal

types of energy

molecular energy

kinetic energy in a sample of an object

external energy

total potential and kinetic energy

internal energy

total potential and kinetic energy of molecules

internal energy

external energy can transfer to

temperature increase

external energy transfer to internal energy results in

temperature

measure of internal energy

energy

cannot be created or destroyed

heat flow

result of a temperature difference

conduction

heat through matter

convection

energy transfer through hot material

radiation

energy with electromagnetic waves

heat

measure of internal energy that has been absorbed or transferred

latent heat

heat associated with a phase change

heat curve

temperature change as a substance is heated

100c

212f

373k

boiling of water (c,f,K)

0c

32f

273K

freezing of water (c,f,K)

-273 c

-459 f

0 K

absolute zero (c,f,K)

farenheight

9/5(c+32)

celcius

5/9(f-32)

kelvin

c + 273

gravity

electromagnetic

strong

weak

forces

gravity

act between objects in universe that have mass

electromagnetic

force between objects that have a charge

strong force

holding together nuclei of atoms

weak force

involved in nuclear reactions