Energy power point
•Download as PPT, PDF•
0 likes•149 views
introduction for energy lesson
Recommended
More Related Content
Similar to Energy power point
Similar to Energy power point (20)
More from mohamad gohary
More from mohamad gohary (20)
Recently uploaded
Recently uploaded (20)
Energy power point
- 2. • Energy causes things to happen around us. – You can hear energy as sound. – You can see energy as light. – And you can feel it as wind.
- 3. • You use energy when you: – Kick or hit a ball. – lift your book bag.
- 4. ENERGY CAN BE FOUND IN DIFFERENT FORMS:
- 5. Types of energy All these forms, are divided into two main types: potential and kinetic energy!!!!
- 6. Potential Energy , the First type’ Is stored energy
- 7. Examples of potentional energy Stretching a rubber band.. -Stores energy Water at the top of a waterfall.. -Stores energy Drawing a Bow… -Stores energy because of position
- 8. Kinetic Energy , the second type’ Is moving energy
- 9. Examples of Kinetic Energy • Shooting a rubber band. • Water falling over the fall. • Releasing arrow from the bow.
- 10. energy conversions • Energy can not created or destroyed or removed, it can only be change from one form to another. • Changes in the form of energy …are called energy conversions.
- 11. Sources of energy • Biggest source of energy is our Sun • Some other sources are – Coal – petrol – Gas – wind – Water fall Nonrenewable Resource Renewable Resource
- 12. conclusion • Energy is ability to do work or cause change . • Objects can have energy by virtue of their motion (K.E) or by virtue of their position(P.E).
- 13. Quiz time True or False • Potential energy → Energy that is stored as a result of position or shape • Elastic potential energy → the potential energy associated with objects that can be stretched or compressed • Electrical energy → a form of potential energy that is stored in chemical bonds between atoms.
Editor's Notes
- Some examples of potential energy are.. Stretching a rubber band… this store energy because it has the ability of doing work. Water at the stop of the fall has the ability of falling, therefore it stores energy. A Yo Yo held in your hand stores energy because when you alter its position it now has the ability of doing work. A bow and arrow has stored energy because its position has changed and it now has the capability of shooting the arrow.
- Using the same examples as potential energy, you can see how the same object that previously had PE now has KE. If the rubber band we were stretching to give it PE, were to be let go, it would now have KE because its now in motion. Same with the water in the waterfall, when it falls over, its now in motion. The Yo-Yo and the arrow from the bow are also moving, giving all these objects KE.