MASS, WEIGHT AND GRAVITY

Question 1

WHAT IS GRAVITY

Answer 1

THE FORCE OF ATTRACTION BETWEEN ALL MASSES, ONLY NOTICABLE WHEN MASSES ARE REALLY BIG
EXAMPLE: PLANET, ANYTHING NEAR IT IS ATTRACTED TO IT VERY STRONGLY

Question 2

WHAT ARE THE THREE IMPORTANT EFFECTS OF GRAVITY

Answer 2

1) ON THE SURFACE OF THE PLANET, IT MAKES ALL THINGS ACCELERATE TOWARDS THE GROUND (ALL WITH THE SAME ACCELERATIONÀ
2) IT GIVES EVERYTHING A WEIGHT
3) IT KEEPS PLANETS, MOONS AND SATELLITES IN THEIR ORBIT

Question 3

WHAT IS THE ORBIT

Answer 3

THE ORBIT IS A BALANCE BETWEEN THE FORWARD MOTION OF THE OBJECT AND THE FORCE OF GRAVITY PULLING IT INWARDS

Question 4

WEIGHT AND MASS (…)

Answer 4

ARE NOT THE SAME

Question 5

WHAT IS MASS

Answer 5

MASS IS JUSTN THE AMOUNT LOF ‘STUFF’ IN AN OBJECT

Question 6

WHAT IS WEIGHT

Answer 6

THE WEIGHT OF AN OBJECT IS JUST THE FORCE OF GRAVITY PULLING IT TOWARDS THE CENTRE OF THE EARTH

Question 7

AN WOULD HAVE THE SAME (…) WETHER ITS ON EARTH OR ON THE MOON

Answer 7

MASS

Question 8

AN ABJECTS WEIGHT WILL (…) DEPENDING ON WETHER ITS ON EARTH OR ON THE MOON

Answer 8

CHANGE

Question 9

HOW IS WEIGHT MEASURED

Answer 9

WEIGHT IS A FORCE MEASURED IN NEWTONS USING A SPRING BALANCE OR NEWTON METER

Question 10

HOW IS MASS MEASURED

Answer 10

MASS IS NOT A FORCE, ITS MEASURED IN KILOGRALMS WITH A MASS BALANCE

Question 11

WHAT IS THE FORMULA RELATING MASS, WEIGTH AND GRAVITY

Answer 11

WEIGHT=MASS x GRAVITATIONAL FIELD STRENGTH