types of Energy lesson for grade eight students

lesson 3

1. 16+15+20+5+14+20+9+1+12 P 0 T E N T I A L

2. 11+9+14+5+20+9+3 K E N I T I C

3. PROCESS QUESTIONS What can you see in the picture? Is there any differences between the two images?

4. ENERGY T he capacity to do work. It is supplied by the food you eat, among others which serve as fuel. The unit of energy is JOULE

5. Different forms of energy KINETIC ENERGY (Motion) POTENTIAL ENERGY (stored) a. light (radiant) b. Electrical c. Chemical d. Nuclear e. Gravitational f. Elastic g. Heat (thermal)

6. KINETIC ENERGY - The energy possessed by moving body. Forms of Kinetic Energy: Vibrational Kinetic energy - due to vibrational motion. Rotational Kinetic Energy - due to rotational motion Translational Kinetic Energy- Due to motion from one place to another

7. Kinetic Energy is dependent on a body’s motion. Factors affecting kinetic energy MASS VELOCITY

8. Kinetic energy is the product of mass and square of the velocity. KE m The kinetic energy is directly proportional to the square of the speed.  

9. Potential Energy-is a stored energy.