GROUP LEARNING ACTIVITY-Potential &KE.pptx

a group learning activity after the lesson

1. GROUP LEARNING ACTIVITY SCIENCE 8-OPTIMIST WEEK 3

2. 1. A child jumping on a bed

3. 2. A lamp turned on

4. 3. A ball in a basketball player’s hand

5. 4. A rolling soccer ball

6. 5. A sleeping child

7. 1. Determine the KE of a 625 kg roller coaster car that is moving with a speed of 18.3 m/s. A. 11, 437.5 J B.104, 653.13J C. 643.3 J

8. 2. Find the potential energy of a light that has a mass of 13 kg and is 4m above the ground. A. 509.6 J B. 52J C. 3,25 J

9. 3. An energy due compression or expansion of an elastic object.. A. Gravitational Potential Energy B. Elastic Potential Energy C. Chemical Potential Energy

10. 4. An energy due to an object’s position A. Gravitational Potential Energy B. Elastic Potential Energy C. Chemical Potential Energy

11. 5. What is the kinetic energy of a 3kg ball that is rolling 2m/s? A. 6 J B. 12 J C. 5 J

12. 6. What is the KE of a jogger with a mass of 65.0 kg traveling at a speed of 2 m/s2?

13. 7. Find the potential energy of a light that has a mass of 13 kg and is 4m above the ground.

14. 8. What is the kinetic energy of a 0.38 kg soccer ball that is traveling at a speed of 120 m/s?.

15. 9. A cart at the top of a 300 m hill has a mass of 40 kg. What is the cart’s gravitational potential energy?

16. 10. If the mass of the loaded cart is 3.0 kg and the height of the seat top is 0.45 meters, what is the potential energy of the loaded cart at height of the seat-top?

17. 11. What is the KE of a 2000 kg boat moving at 5.0 m/s?

18. 12. A 1400 kg car is moving at a speed of 25 m/s. How much KE does the car have?

19. 13. A 70 kg man is walking at a speed of 2.0 m/s. What is his kinetic energy?

20. 14. Determine the potential energy of a 5 kg object when it is raised at 2m from the floor.