HI JOEY, YOU KNOW THESE DAYS I AM STUDYING ABOUT GRAVITATION IN SCHOOL BUT I AM SOME WHAT CONFUSED ABOUT THE DIFFERENCE BETWEEN MASS AND WEIGHT. CAN YOU PLEASE EXPLAIN THAT TO ME?
YA SURE, LET'S TALK ABOUT MASS FIRST. MASS IS THE MEASURE OF THE AMOUNT OF MATTER IN A BODY.MASS IS DENOTED BY “M”.
MASS IS ALWAYS CONSTANT FOR A BODY AND THERE ARE SEVERAL FORMULAS TO CALCULATE MASS.ONE WAY TO CALCULATE MASS IS:MASS = VOLUME × DENSITY*MASS ONLY HAS MAGNITUDE AND SO, IT IS A SCALAR QUANTITY.THE SI UNIT OF MASS IS KILOGRAM (KG).
THAT WAS PRETTY INTERESTING. AND WHAT ABOUT WEIGHT.
YES, LET'S TALK ABOUT WEIGHT NOW.
WEIGHT IS THE MEASURE OF THE AMOUNT OF FORCE ACTING ON A MASS DUE TO ACCELERATION DUE TO GRAVITYWEIGHT IS DENOTED BY “W”
WEIGHT IS THE MEASURE OF THE GRAVITATIONAL FORCE ACTING ON A BODY.WEIGHT CAN BE CALCULATED FROM THE FOLLOWING FORMULA:WEIGHT = MASS × ACCELERATION DUE TO GRAVITYWEIGHT HAS BOTH MAGNITUDE AND DIRECTION (TOWARDS THE CENTRE OF GRAVITY) AND SO, IT IS A VECTOR QUANTITY.THE SI UNIT OF WEIGHT IS NEWTON (N).