definition of friction

friction is a force which opposes motion

FRICTION IS A FORCE THAT OPPOSES MOTION.IT ACTS IN A direction opposite to the moving object.

the different types OF FRICTION Are

1. staTIC FRICTION : when a force is applied to an object but it does not cause it to moveexample: pushing on a wall
2. ROLLING FRICTION : occurs when an object rolls over another (something with wheels or that is circular like a ball)example: riding a motorcycle
3. FLUID FRICTION : occurs when a object moves through a fluid, meaning either a liquid or gasexamples: skydiving, swimming
4. Sliding friction : occurs when solid surfaces slide over each otherexample:falling on the pavement

friction IS BOTH USE AND HARM FUL

1. AS WE ARE ABLE TO WALK, DRIVE SAFELY , WRITE, LIT FIREBY RUBBING TWO STONES BECAUSE OF FRICTION

ON THE OTHER HAND

1. IT CAUSES WEAR AND TEAR OF MACHINARY PARTS , WEARS OUT SOLES OF OUR SHOES AND WASTES ENERGY AS SOME ENERGY SUCH AS HEAT ENERGY IS THERE IN SUCH CASES.

PROPERTIES OF FRICTION ARE

1. IT ACTS BETWEEN TWO SURFACES IN CONTACT WITH EACH OTHER.
2. FRICTION IS A force which opposes motion
3. friction is a FORCE THAt aCTS IN A direction opposite to theDIRECTION OF A movingOBJECT.

HERE IS A DETAILED DESCRIPTION OF FRICTION:-

FRICTION IS A FORCE THAT OPPOSES THE MOTION BETWEEN TWO SURFACES IN CONTACT WITH EACH OTHER.

CHARACTERISTICS OF FRICTION ARE:-

a/ FRICTION OPPOSES MOTION AND SLOWS DOWN MOVING OBJECTS OR PREVENTS STATIONARY OBJECTS FROM MOVING.

b/FRICTION ALWAYS PRODUCES HEAT.IT IS DUE TO FRICTION THAT TYRES OF A MOVING VEHICLE AND MOVING PARTS OF A MACHINE BECOME HOT.

c/FRICTION CAUSES WEARS AND TEARS. THIS BECAUSE THE SOLES OF YOUR SHOES WEARS OT IN A FEW MONTHS.

FACTORS ON WHICH FORCE OF FRICTION DEPENDS:-

1. FRICTION DEPENDS ON THE NATURE OF SURFACES IN CONTACT

2.FRICTION DEPENDS ON THE WEIGHT OF THE OBJECT.

3.FRICTION IS INDEPENDENT OF AREA OF SURFACE(PROVIDED THE WEIGHT REMAINS THE SAME)

4. FRICTIONAL FORCE IS EXERTED BY MATERIALS OF ALL PHYSICAL STATES. i.e-SOLIDS,LIQUIDS AND GASES

TYPES OF FRICTION:-

1.ROLLING FRICTION-WHEN AN OBJECT ROLLS ON A SMOOTH SURFACE THEN THE FRICTION PRODUCED BETWEEN THE ROLLING OBJECT AND THE SURFACE IS CALLED THE ROLLING FRICTION.

2.SLIDING FRICTION- WHEN WE SLIDE AN OBJECT ON A SURFACE ,THE FRICTION PRODUCED BETWEEN THE OBJECT AND THE SURFACE IS CALLED THE SLIDING FRICTION.

ADVANTAGES OF FRICTION:-

1.FRICTION HELPS US TO WALK.

2.CARS AND BUSES ARE ABLE TO MOVE SAFELY ON THE ROAD ONLY BECAUSE OF THE FRICTION BETWEEN THE TREADED TYRES AND THE ROAD.

3.FRICTION HELPS US TO WRITE.

4.FRICTION CAUSES NAILS AND SCREWS TO HOLD ON WALLS,ETC.

DISADVANTAGES OF FRICTION :-

1.FRICTION CAUSES WASTAGE OF ENERGY

2.FRICTION CAUSES WEARS AND TEARS.

3.FRICTION GENERATES HEAT.

INCREASING FRICTION:-

1.TYRES HAVE GROOVES AND PATTERNS ON THEM TO INCREASE FRICTION WITH THE ROAD AND ALSO TO AVOID SLIPPING ON MARSHY ARES.

2.SAND AND GRAVEL ARE STREWN ON SLIPPERY GROUND DURING THE RAINY SEASON TO IBCREASE FRICTION AND THIS ALSO HELPS US TO WALK.

3. SPIKES ARE PROVIDED ON SHOES TO INCREASE FRICTION WITH THE ROAD AND THIS ALSO PREVENTS WEARS AND TEARS , ETC

REDUCING FRICTION:-

1. BY POLISHING

2. BY LUBRICATION

3.BY STREAMLINING TO REDUCE FLUID FRICTION

4.BY USING WHEEL AND BALL BEARINGS.

I HOPE NOW YOU HAVE GAINED A LITTLE KNOWLEDGE IN YOUR MIND'S LIBRARY ABOUT FRICTION!!

HERE IS A DETAILED DESCRIPTION OF FRICTION:-

FRICTION IS A FORCE THAT OPPOSES THE MOTION BETWEEN TWO SURFACES IN CONTACT WITH EACH OTHER.

CHARACTERISTICS OF FRICTION ARE:-

a/ FRICTION OPPOSES MOTION AND SLOWS DOWN MOVING OBJECTS OR PREVENTS STATIONARY OBJECTS FROM MOVING.

b/FRICTION ALWAYS PRODUCES HEAT.IT IS DUE TO FRICTION THAT TYRES OF A MOVING VEHICLE AND MOVING PARTS OF A MACHINE BECOME HOT.

c/FRICTION CAUSES WEARS AND TEARS. THIS BECAUSE THE SOLES OF YOUR SHOES WEARS OT IN A FEW MONTHS.

FACTORS ON WHICH FORCE OF FRICTION DEPENDS:-

1. FRICTION DEPENDS ON THE NATURE OF SURFACES IN CONTACT

2.FRICTION DEPENDS ON THE WEIGHT OF THE OBJECT.

3.FRICTION IS INDEPENDENT OF AREA OF SURFACE(PROVIDED THE WEIGHT REMAINS THE SAME)

4. FRICTIONAL FORCE IS EXERTED BY MATERIALS OF ALL PHYSICAL STATES. i.e-SOLIDS,LIQUIDS AND GASES

TYPES OF FRICTION:-

1.ROLLING FRICTION-WHEN AN OBJECT ROLLS ON A SMOOTH SURFACE THEN THE FRICTION PRODUCED BETWEEN THE ROLLING OBJECT AND THE SURFACE IS CALLED THE ROLLING FRICTION.

2.SLIDING FRICTION- WHEN WE SLIDE AN OBJECT ON A SURFACE ,THE FRICTION PRODUCED BETWEEN THE OBJECT AND THE SURFACE IS CALLED THE SLIDING FRICTION.

ADVANTAGES OF FRICTION:-

1.FRICTION HELPS US TO WALK.

2.CARS AND BUSES ARE ABLE TO MOVE SAFELY ON THE ROAD ONLY BECAUSE OF THE FRICTION BETWEEN THE TREADED TYRES AND THE ROAD.

3.FRICTION HELPS US TO WRITE.

4.FRICTION CAUSES NAILS AND SCREWS TO HOLD ON WALLS,ETC.

DISADVANTAGES OF FRICTION :-

1.FRICTION CAUSES WASTAGE OF ENERGY

2.FRICTION CAUSES WEARS AND TEARS.

3.FRICTION GENERATES HEAT.

INCREASING FRICTION:-

1.TYRES HAVE GROOVES AND PATTERNS ON THEM TO INCREASE FRICTION WITH THE ROAD AND ALSO TO AVOID SLIPPING ON MARSHY ARES.

2.SAND AND GRAVEL ARE STREWN ON SLIPPERY GROUND DURING THE RAINY SEASON TO IBCREASE FRICTION AND THIS ALSO HELPS US TO WALK.

3. SPIKES ARE PROVIDED ON SHOES TO INCREASE FRICTION WITH THE ROAD AND THIS ALSO PREVENTS WEARS AND TEARS , ETC

REDUCING FRICTION:-

1. BY POLISHING

2. BY LUBRICATION

3.BY STREAMLINING TO REDUCE FLUID FRICTION

4.BY USING WHEEL AND BALL BEARINGS.

I HOPE NOW YOU HAVE GAINED A LITTLE KNOWLEDGE IN YOUR MIND'S LIBRARY ABOUT FRICTION!!