GRAVITY
ALL MATTER HAS GRAVITY. ALL MATTER HAS MASS.
WHAT HAS MASS?
SIR ISAAC NEWTON WATCHED AN APPLE FALL WHILE SITTING UNDER A TREE.
WHAT HAPPENED TO NEWTON?
THE FORCE OF GRAVITY PULLS YOU DOWN TO EARTH.
WHAT DOES THE FORCE OF GRAVITY DO?
EVERYTHING HAS MASS.
WHAT HAS MASS?
EVERYTHING THAT HAS MASS HAS WEIGHT.
WHAT HAS WEIGHT?
SMALL OBJECTS HAVE GRAVITY BUT IT IS A SMALL FORCE.
DO SMALL OBJECTS HAVE GRAVITY?
NEWTON REALIZED AN UNBALANCED FORCE ON THE MOON KEPT IT MOVING AROUND THE EARTH.
WHAT DID NEWTON REALIZE ABOUT THE MOON AND THE EARTH?
GRAVITATIONAL FORCE IS RELATED TO MASS AND DISTANCE.
WHAT IS GRAVITATIONAL FORCE RELATED TO?
WHAT IS MASS?
WEIGHT IS THE MEASURE OF THE GRAVITATIONAL FORCE ON AN OBJECT.
WHAT IS WEIGHT?
IT PULLS OBJECTS TOWARDS EACH OTHER.
WHAT DOES GRAVITY DO?
NEWTON'S LAWS ARE UNIVERSAL BECAUSE TEHY APPLY TO ALL OBJECTS.
WHY ARE NEWTON'S LAWS UNIVERSAL?
IF THE DISTANCE IS LARGE, THE GRAVITATIONAL FORCE IS SMALL.
WHAT IS THE FORCE WHEN THE DISTANCE IS LARGE?
MASS IS MEASURED USING A BALANCE AND USING G OR KG.
HOW IS MASS MEASURED?
WEIGHT CHANGES BASED ON THE AMOUNT OF GRAVITY.
DOES WEIGHT CHANGE WITH GRAVITY?
GRAVITATIONAL FORCE MEANS ALL OBJECTS ATTRACT EACH OTHER.
WHAT DOES GRAVITATIONAL FORCE MEANS?
IF THE DISTANCE IS SMALL, THE GRAVITATIONAL FORCE GETS BIGGER.
WHAT IS THE FORCE WHEN THE DISTANCE IS SMALL?
MASS DOES NOT CHANGE WHEN WEIGHT(GRAVITATIONAL FORCE) CHANGES.
DOES MASS CHANGE WHEN WEIGHT CHANGES?
WEIGHT IS MEASURED USING A SPRING SCALE AND USING NEWTON (N).
YOU CAN BOUNCE ON THE MOON BECAUSE IT HAS LESS GRAVITY THAN EARTH.
WHY CAN YOU BOUNCE ON THE MOON BUT NOT ON EARTH?
NEWTON SAID GRAVITATIONAL FORCE DEPENDS ON:
1) MASS
2) DISTANCE
WHAT ARE NEWTON'S 2 LAWS ABOUT GRAVITATIONAL FORCE?
THE SUN HAS A LARGE GRAVITATIONAL PULL ON THE PLANETS BUT NOT ON HUMANS.
WHAT DOES THE SUN HAVE A LARGE GRAVITATIONAL FORCE ON?
THE DIFFERENCE IS MASS MEASURES THE AMOUNT OF MATTER BUT WEIGHT MEASURES THE GRAVITATIONAL FORCE ON AN OBJECT.
WHAT IS THE DIFFERENCE BETWEEN MASS AND WEIGHT?
WHAT ROLE DOES GRAVITY PLAY IN ROLLER COASTERS?