The document discusses the concept of gravity and its effects. It explains that gravity is the force exerted by Earth that causes things to fall toward the ground. Gravity affects birds needing to overcome it to fly and causes water droplets to fall as rain. Gravity also impacts paratroopers and divers. The document contrasts the concepts of mass and weight, where mass is the amount of substance in an object and weight is the gravitational force pulling it downward, which can be measured differently on various planets.

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.