Powerpoint presentation about electricity

Lesson about electricity as well as activity

1. BE IN CHARGE!BE ELECTRIFYING! Charging by friction

2. Review:insulator OR conductor IDENTIFY THE FOLLOWING PICTURES INTO CONDUCTOR OR INSULATOR:

3. CONDUCTOR OR INSULATOR? This Photo by Unknown Author is licensed under CC BY

4. CONDUCTOR OR INSULATOR? This Photo by Unknown Author is licensed under CC BY-NC

5. CONDUCTOR OR INSULATOR? This Photo by Unknown Author is licensed under CC BY-SA-NC

6. CONDUCTOR OR INSULATOR?

7. CONDUCTOR OR INSULATOR? This Photo by Unknown Author is licensed under CC BY

8. CONDUCTOR OR INSULATOR? This Photo by Unknown Author is licensed under CC BY-NC

9. WHAT DO THESE THINGS HAVE IN COMMON? This Photo by Unknown Author is licensed under CC BY-NC This Photo by Unknown Author is licensed under CC BY-NC

10. Electricity ALSO KNOWN AS ELECTRICAL ENERGY,ORIGINATES FROM THE MOTION OF CHARGES MADE UP OF ATOMS OR COMBINATIONS OF ATOMS CALLED MOLECULES AN ELECTRIC CHARGE IS AN ELECTRIC PROPERTY OF MATTER THAT CREATES A FORCE BETWEEN OBJECTS

11. HOW DO OBJECTS GET CHARGED ELECTRICITY ORIGINATES INSIDE AN ATOM.AN ATOM CONSIST OF SUB-ATOMIC PARTICLES;THESE ARE PROTONS (+), ELECTRONS (-) AND NEUTRON (0) WHICH HAVE DIFFERENT CHARGES.

12. Sub-atomic particles: This Photo by Unknown Author is licensed under CC BY

13. How do objects get charged AN OBJECTS GET CHARGED BY GAINING OR LOSING AN ELECTRONS RUBBING TWO DIFFERENT MATERIALS CAN CAUSE TRANSFER OF ELECTRONS FROM ONE OBJECT TO ANOTHER ALWAYS REMEMBER THAT ONLY THE ELECTRONS CAN TRANSFER SINCE THEY ARE LOCATED ON THE OUTERMOST PART OF THE NUCLEUS

14. How do objects get char WHEN AN OBJECTS TRANSFERRED OR LOSES AN ELECTRONS THE OBJECTS BECOME POSITIVELY CHARGED WHEN AN OBJECTS GAINS AN ELECTRONS, IT BECOMES NEGATIVELY CHARGED BUT IF AN OBJECTS DOES NOT GAIN OR LOSE AN ELECTRONS IT HAS NEUTRAL CHARGE

15. LAW OF CONSERVATION OF CHARGES STATES THAT CHARGES CANNOT BE CREATED NOR DESTROYED ,IT ONLY TRANSFERRED FROM ONE MATERIAL TO ANOTHER.THE TOTAL CHARGE IN A SYSTEM MUST REMAIN CONSTANT

16. FORCE OF ATTRACTION A FORCE THAT PULLS OBJECTS TOGETHER This Photo by Unknown Author is licensed under CC BY-SA

17. FORCE OF ATTRACTION This Photo by Unknown Author is licensed under CC BY-SA-NC A FORCE THAT PUSHES OBJECTS APART FROM EACH OTHER

18. LAW OF CHARGES “ OPPOSITE CHARGES ATTRACT, AND LIKE CHARGES REPEL”

19. ACTIVITY 1. RUB ME HARDLY OBJECTIVE: TO CHARGE AN OBJECT THROUGH THE PROCESS OF FRICTION MATERIALS: BALLOON,HUMAN HAIR,CLOTH WHAT TO DO: 1. INFLATE THE BALLOON TO JUST THE RIGHT SIZE 2. RUB THE BALLOON ONTO YOUR HAIR OR WITH A CLOTH. OBSERVE WHAT WILL HAPPEN.

20. RUB ME HARDLY 3. PULL THE BALLOON AWAY FROM YOUR HAIR.OBSERVE WHAT HAPPENED. 4. THIS TIME PLACE YOUR BALLOONS NEAR THE BALLOON OF YOUR CLASSMATES (AFTER RUBBING IT WITH CLOTH) OBSERVE WHAT HAPPENED.

21. QUESTIONS: WHAT HAVE YOU OBSERVED AFTER RUBBING THE BALLOON WITH YOUR HAIR? WHEN YOU PULL THE BALLOON AWAY FROM YOUR HAIR WHAT DID YOU NOTICE ABOUT YOUR HAIR? WHAT HAPPENED WHEN YOU PLACE THE TWO RUBBED BALLOON NEAR EACH OTHER? EXPLAIN YOUR ANSWER.

22. CHARGING BY FRICTION CAN OCCUR BY RUBBING TWO DIFFERENT MATERIALS THE ELECTRONS FROM ONE MATERIALS MOVE TO ANOTHER MATERIALS - IT GIVES A POSITIVE CHARGE TO ONE OBJECT AND A NEGATIVE CHARGE TO ONE OBJECT

23. 1. IT POWERS OUR LIGHTS 2. CHARGES OUR PHONES 3. RUNS OUR APPLIANCES SUCH AS WASHING MACHINES,MICROWAVES AND REFRIGERATORS APPLICATION OF CHARGES IN OUR LIFE:

24. REVIEW: 1. THERE ARE ______ SUB ATOMIC PARTICLES. 2. PROTON IS _______ CHARGED 3. ELECTRON IS _______ CHARGED 4. OBJECTS WITH SAME CHARGE WILL _______ WHILE OBJECTS WITH DIFFERENT CHARGE WILL ___________ 5. CHARGING BY RUBBING TWO DIFFERENT OBJECT IS CALLED CHARGING BY ___________