# Shared Flashcard Set

## Details

comp study guide
for physics
37
Physics
05/04/2011

Term
 what are the five steps of the scientific method?
Definition
 1: find a problem or something unknown2:make a hypothesis3: make predictions about your hypothesis 4: conduct expirements to test your hypothesis 5: devise a theory
Term
 what are the metric units?
Definition
 length- meterweight-newtonmass-gramstime-secondsvolume-litertemperature-celsius degrees
Term
 what are the metric prefixes?
Definition
 Trillion 1,ooo,ooo,ooo,ooo Tera Billion 1,ooo,ooo,ooo Giga Million 1,ooo,ooo Mega Thousand 1,ooo Kilo Hundred 1oo Hecto Ten 1o Deca 0 0 0 Tenth o.1 deci Hundredth o.o1 centi Thousandth o.oo1 milli Millionth o.ooooo1 micro billionth o.oooooooo1 nano trillionth o.ooooooooooo1 pico
Term
 What are the equations for speed, distance, and time?
Definition
 S=D/T D=SxTT=D/S
Term
 What can velocity be defined as?
Definition
 speed and distance
Term
 to find resultant velocity, _________ velocity in the same direction and ___________ velocities in opposite directions.
Definition
Term
 What is inertia?
Definition
 the tendency of objects to resist a change in motion
Term
 What determines inertia?
Definition
 based on the mass of the object
Term
 what are the equations for Newton's second law of motion?
Definition
 A=f/mF=AxMM=F/A
Term
 Is mass directly or indirectly proportional to weight?
Definition
 directly
Term
 What are the 2 definitions of mass?
Definition
 1: the quantity of matter in an object2: a measure of an object's inertia
Term
 equilibrium table
Definition
 STUDY IT!
Term
 when determining the net force acting on an an object, always _____ forces in the same direction, and _________forces acting in opposite directions.
Definition
Term
 what is newton's third law?
Definition
 "whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first
Term
 what are the forces described in newton's third law called?
Definition
 action and reaction forces
Term
 What are the 2 differences between momentum and inertia?
Definition
 momentum applies to moving objects, inertia applies to moving objects and resting objects. Also, they have different units.
Term
 How much work has been done on an object that moved but ends up where it started?
Definition
 no work is done
Term
 What is the Law of Conservation of Energy?
Definition
 Energy can not be created or destroyed
Term
 What is the wavelength of a wave?
Definition
 the distance between one crest and another crest or between one trough and another trough
Term
 What is the range of human hearing?
Definition
 20 Hz-20,000 Hz
Term
 What is the speed of light in air?
Definition
 330 m/s squared
Term
 what is resonance?
Definition
 it is when the frequency of force vibrations on an object matches its natural frequency, a dramatic increase of amplitude occurs, this is resonance.
Term
 what is the difference between loudness and intensity?
Definition
 loudness is perceived and intesity can be measured
Term
 describe the attractions of like and unlike charges.
Definition
 like charges repel and unlike charges attract
Term
 what are the equations for Ohm's Law?
Definition
 current=voltage/resistanevoltage=current x resitance resictance=voltage/current
Term
 why do most materials not have magnetic properties?
Definition
 because most material's particles are not aligned
Term
 what is magnetic force caused by?
Definition
 the motion of charged particles
Term
 What are the fossil fuels?
Definition
 coal, oil, and natural gas
Term
 What is the difference between nuclear fission and nuclear fusion?
Definition
 nuclear fission is when the nucleus is split and nuclear fusion is when the nucleus is joined with another nucleus (from a different atom)
Term
 What is used in modern power plants?
Definition
 nuclear fission
Term
 What are some sources of light?
Definition
 light bulb filament, the sun, glowing gases
Term
 What percentage of the electromagnetic spectrum is made of visible light?
Definition
 one millionth of a percent
Term
 What is color?
Definition
 a physiological expirence that may differ ffrom person to person
Term
 how many different colors are in the color spectrum?
Definition
 infinate numbers
Term
 The groups of colors in the visible spectrum from lowest to highest are...
Definition
 red, orange, yellow, green, blue, indigo, violet
Term
 What light contains all of the visible frequencies?
Definition
 white (i think)
Term
 What are the additive primary colors?
Definition
 red, blue, green
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