Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
23 Cards in this Set
- Front
- Back
|
LAW OF UNIVERSAL GRAVITY
DEFINITION |
-EVERYTHING PULLS ON -EVERYTHING ELSE IN A WAY THAT SIMPLY INVOLVES MASS AND DISTANCE
-GREATER MASSES MEANS GREATER ATTRACTION (DIRECTLY PROPORTIONAL) -GREATER DISTANCE SEPRATING WEAKER ATTRACTION (INVERSELY PROPORTIONAL) |
|
|
LAW OF UNIVERSAL GRAVITY
FORMULA |
FORCE IS PROPORTIONAL TO MASS1 x MASS2 ÷ DISTANCE²
F = (m1)(m2) d² |
|
|
UNIVERSAL GRAVITATIONAL CONSTANT
DEFINITION |
CHANGES THE LAW OF UNIVERSAL GRAVITATION FROM A PROPORTION
TO AN EQUATION |
|
|
UNIVERSAL GRAVITATIONAL CONSTANT
FORMULA |
--------------------
|
|
|
UNIVERSAL GRAVITATIONAL CONSTANT (G)
MAGNITUDE |
6.67 x 10ˉ¹¹N·m ²/kg²
-MAGNITUDE OF G IDENTICAL OF FORCE BETWEEN PAIR OF 1kg MASSES 1 METER APART |
|
|
INVERSE SQUARE LAW
DEFINITION |
-LAW RELATING THE INTENSITY OF AN EFFECT TO THE INVERSE SQUARE OF THE DISTANCE FROM THE CAUSE
-GRAVITY, ELECTRIC, MAGNETIC, LIGHT, SOUND, RADIATION ALL FOLLOW THIS LAW |
|
|
INVERSE SQUARE LAW
FORMULA |
INTENSITY ~
1 - d² (d=BETWEEN CENTER MASS) 1 DISTANCE UNIT =1 AREA UNIT =1 LAYER THICK 2 UNITS OF DISTANCE =4 AREA UNITS =1/4 LAYER THICK 3 AREA UNITS =9 AREA UNITS =1/9 LAYER THICK |
|
|
INVERSE SQUARE LAW
EXPLANATION |
d = DISTANCE BETWEEN 2 OBJECTS CENTER MASSES
GREATER DISTANCE FROM EARTHS CENTER, LESS WEIGHT OF OBJECT OBJECT WEIGHS 1/4 AS MUCH, TWICE AS FAR AWAY FROM EARTH CENTER |
|
|
SPRING TIDES
DEFINITION |
-SUN, EARTH, MOON ARE ALIGNED
-TIDES DUE TO THE SUN AND MOON COINCIDE -HIGHER THAN AVERAGE HIGH TIDES -LOWER THAN AVERAGE LOW TIDES -FULL MOON |
|
|
NEAP TIDES
DEFINITION |
-MOON IS HALFWAY BETWEEN A NEW MOON AND FULL MOON
-SUN AND MOON TIDES CANCEL EACH OTHER -HIGH TIDES LOWER THAN AVERAGE -LOW TIDES ARE HIGHER THAN AVERAGE |
|
|
GRAVITATIONAL FIELD
DEFINITION |
PROPERTIES OF SPACE SURROUNDING ANY MASSIVE BODY CAN BE CONSIDERED TO BE CHANGED IN A WAY THE ANOTHER MASSIVE BODY IN THIS AREA EXPERIENCES A FORCE
|
|
|
GRAVITATIONAL FIELD
INSIDE PLANET |
G AT SURFACE
1/4 DOWN WOULD BE 1/4 G 1/2 DOWN WOULD BE 1/2 G CENTER WOULD BE O G ACCELERATION WOULD DECREASE AS REACHED CENTER |
|
|
GRAVITATIONAL FIELD
CAVERN IN CENTER OF PLANET |
G = 0 NO MATTER WHAT SIZE THE CAVERN
|
|
|
WEIGHT
DEFINITION |
FORCE THAT AN OBJECT EXERTS ON A CERTAIN SURFACE (OR, IF SUSPENDED, ON A SUPPORTING STRING) WHICH IS OFTEN, BUT NOT ALWAYS, DUE TO THE FORCE OF GRAVITY
|
|
|
WEIGHTLESS
DEFINITION |
BEING WITHOUT A SUPPORT FORCE, AS IN FREE FALL.
|
|
|
BLACK HOLE
DEFINITION |
A CONCENTRATION OF MASS RESULTING FROM GRAVITATIONAL COLLAPSE, NEAR WHICH GRAVITY IS SO INTENSE THAT NOT EVEN LIGHT CAN ESCAPE.
|
|
|
WEIGHT
DEFINITION |
FORCE THAT AN OBJECT EXERTS ON A CERTAIN SURFACE (OR, IF SUSPENDED, ON A SUPPORTING STRING) WHICH IS OFTEN, BUT NOT ALWAYS, DUE TO THE FORCE OF GRAVITY
|
|
|
WEIGHTLESS
DEFINITION |
BEING WITHOUT A SUPPORT FORCE, AS IN FREE FALL.
|
|
|
BLACK HOLE
DEFINITION |
A CONCENTRATION OF MASS RESULTING FROM GRAVITATIONAL COLLAPSE, NEAR WHICH GRAVITY IS SO INTENSE THAT NOT EVEN LIGHT CAN ESCAPE.
|
|
|
WEIGHT
DEFINITION |
FORCE THAT AN OBJECT EXERTS ON A CERTAIN SURFACE (OR, IF SUSPENDED, ON A SUPPORTING STRING) WHICH IS OFTEN, BUT NOT ALWAYS, DUE TO THE FORCE OF GRAVITY
|
|
|
WEIGHTLESS
DEFINITION |
BEING WITHOUT A SUPPORT FORCE, AS IN FREE FALL.
|
|
|
BLACK HOLE
DEFINITION |
A CONCENTRATION OF MASS RESULTING FROM GRAVITATIONAL COLLAPSE, NEAR WHICH GRAVITY IS SO INTENSE THAT NOT EVEN LIGHT CAN ESCAPE.
|
|
|
UNIVERSAL GRAVITATIONAL CONSTANT
EXPLANATION |
THE FORCE OF GRAVITY BETWEEN TWO OBJECTS IS FOUND BY:
-MULTIPLYING THEIR MASSES -DIVIDE BY SQUARE OF DISTANCES BETWEEN CENTERS -MULT RESULT BY CONSTANT G. |
