Name ________________________Period ________ Date _______________ GPE and KE Worksheet #1 (show your work) 1. Energy in motion is called? _______________ 2. Stored energy is called? __________________ 3. Energy is measured in? _______________ 4. The formula for Kinetic energy is? _________________________ 5. The formula for gravitational potential energy is? ______________________ 6. What is the GPE of a 3 kg block 10 m above the floor? 7. What is the KE of a 6 kg mass at 4 m/s? 8. What is the GPE of a 2 kg ball that is 5 m above the floor? 9. What is the KE of a 10 kg mass at 1 m/s? 10. What is the GPE of a 10 kg rock that is 100 m above the earth? 11. Martha throws a 1 kg ball straight up and it reaches a height of 10 m. What is its GPE at its highest point? 12. What is the KE of a 20 kg mass at 9 m/s? 13. Which has more GPE, a 4 kg ball at 20 m or a 7 kg rock at 11 m in height? 14. What has more KE, an 8 kg mass at 11 m/s or a 2 kg mass at 25 m/s? 15. Which has more GPE a 2.5 kg book at 4 meters or a 1 kg paperweight at 8 m in height? 16. How high do you have to lift a 1 kg box of candy to give it 98 J of GPE? 17. What is the mass of an object that has 324 J of KE when moving at 9 m/s? 18. A 10 kg mass has a KE of 125 J, what is its velocity? 19. What has more energy, a 4 kg mass at 11 m/s or a 12 kg mass 2 m above the ground? 20. What has more energy, a 20 kg mass moving at 9 m/s, or a 4 kg mass 25 m above the floor? Answers: 5m/s, 5J, 8kg, 10m, 48J, 98J, 98J, 98J, 235.2J, 242J, 294J, 625J, 810J, 784J, 980J, 9800J