Name:________________________________ Date:____________________ Pd. _______ Pd. 7 Worksheet: Calculating Energy Determine whether the objects in the following problems have kinetic or potential energy. Then, choose the correct formula to use: Make sure you fill in the energy type, givens (listed as variables), equation, calculations, and final answer (with units). 1. You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed fo 30 m/s. The volleyball has ____________________ energy. Givens: Equation: Calculations: Answer: _________________________ [don’t forget units] *Worksheet adapted from http://cprepphysicalscience.weebly.com/uploads/1/2/7/7/12774250/potential_and_kinetice_energy.pdf 2. A baby carriage is sitting at the top of a hill that is 21 m high. The carriage with the baby weights 2.1kg. The baby and the carriage have ____________________ energy. Givens: Equation: Calculations: Answer: _________________________ [don’t forget units] 3. A car is traveling with a velocity of 40 m/s and has a mass of 1120 kg. The car has ____________________ energy. Givens: Equation: Calculations: Answer: _________________________ [don’t forget units] 4. A cinder block is sitting on a platform 20 m high. Its mass is 7.7kg. The cinder block has ____________________ energy. Givens: Equation: Calculations: Answer: _________________________ [don’t forget units] 5. There is a bell at the top of a tower that is 45 m high. The bell’s mass is 19.4kg. The bell has ____________________ energy. Givens: Equation: Calculations: Answer: _________________________ [don’t forget units] 6. A roller coaster is at the top of a 72m hill and its mass is 102kg. The coaster (at this moment) has ____________________ energy. Givens: Equation: Calculations: Answer: _________________________ [don’t forget units] This graph shows a ball rolling from A to G. The ball starts at point A and rolls to point G. 7. At what letter(s) does the ball have the greatest kinetic energy? __________________ 8. At what letter(s) does the ball have the least kinetic energy? _____________________ 9. At what letter(s) does the ball have the greatest potential energy? ________________ 10. At what letter(s) does the ball have the least potential energy? ___________________

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