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Work and energy pdf
1.
2. CONTENTS
• DEFINING WORK
• DEFINING ENERGY
• SI UNIT OF WORK
• SI UNIT OF ENERGY
• SUMMARY OF THE RELATIONSHIP
3. DEFINING WORK
• WHAT IS WORK?
• WHEN IS WORK DONE?
• WORK IS THE PRODUCT OF FORCE AND DISTANCE.
• WORK IS DONE IF A FORCE CAUSES MOVEMENT IN ITS DIRECTION.
4. DEFINING ENERGY
• WHAT IS ENERGY?
• ENERGY IS THE POTENTIAL TO DO WORK.
• OR ENERGY IS THE ABILITY TO DO WORK.
• ENERGY IS STORED IN THE OBJECTS OR ORGANISMS.
• IF THERE IS NO ENERGY, THERE IS NO WORK THAT CAN BE DONE.
5. THE SI UNIT OF WORK
• WORK IS A PRODUCT OF FORCE AND DISTANCE.
• DISTANCE IS MEASURED IN METRES.
• FORCE IS MEASURED IN EWTONS.
• THUS WORK IS MEASURED IN NEWTON METRE.
• THE SI UNIT OF WORK, THOUGH IS THE JOULE.
6. THE SI UNIT OF ENERGY
• ENERGY IS MANIFESTED IN THE WORK DONE.
• IF YOU CAB DO WORK, THAT MEANS YOU HAD ENERGY.
• DIFFERENT PEOPLE OR OBJECTS HAVE DIFFERENT AMOUNTS OF ENERGY.
• THE SI UNIT OF ENERGY IS THE SAME AS THAT OF WORK.
7. SUMMARY OF THE RELATIONSHIP
• WORK AND ENERGY ARE VERY RELATED.
• WORK IS A RESULT OF ENERGY.
• ENERGY IS MANIFESTED IN THE WORK DONE.
• WORK AND ENERGY ARE MEASURED USING THE SAME SI UNIT (THE JOULE)
8. THE END OF PRESENTATION
THANKS FOR READING THIS PRESENTATION