1. GRAVITY

2. GRAVITATIONAL FORCE
• EARTH EXERTS A FORCE
TOWARDS ITSELF , THAT’S
WHY THINGS FALL ON
GROUND, THIS IS CALLED
GRAVITATIONAL FORCE.

3. EFFECTS OF GRAVITY
• A BIRD NEEDS TO
OVERCOME GRAVITY IN
ORDER TO FLY

4. RAIN
• GRAVITY CAUSES
WATER DROPLETS
THAT ARE
FORMED HIGH IN
THE SKY TO FALL
AS RAIN

5. GRAVITY FOR
PARATROOPER

6. GRAVITY FOR DIVERS

7. MASS
• IT IS THE AMOUNT OF
SUBSTANCE IN AN OBJECT.

8. HOW MASS IS
MEASURED
• IT IS MEASURED BY
USING BALANCE
• UNIT IS GRAMS OR
KILOGRAMS

9. WEIGHT
• THE PULLING FORCE OF EARTH
GRAVITY
• THE WEIGHT OF AN OBJECT IS
THE FORCE BY WHICH IT IS
BEING PULLED DOWNWARDS

10. HOW TO MEASURE
WEIGHT
• BY FORCE METER
• KITCHEN SCALE
• BATHROOM SCALE
• WEIGHT IS MEASURED IN NEWTON
(N)

11. • OBJECTS WITH GREATER
MASS WILL HAVE MORE
WEIGHT
• OBJECT HAS DIFFERENT
WEIGHT ON EARTH, MOON,
OTHER PLANETS BECAUSE
THE FORCE OF GRAVITY
ACTING WILL BE DIFFERENT

12. WORDS TO
REMEMBER
• AIR RESISTANCE
• ELASTIC SPRING
FORCE
• GRAVITATIONAL
FORCE
• FRICTION
• MASS
• NEWTON
• GRAVITY
• MAGNETIC FORCE
• WEIGHT

14. HOMEWORK
• COMPLETE THE ACTIVITY ON PAGE NUMBER 15 TEXTBOOK.