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- 1. Multiple ChoiceThe faster an object moves, the ________ kinetic energy it has.morelessnone of the aboveall of the above
- 2. Multiple Choice
A cheetah can run briefly with a speed of 31.0 m/s. Suppose a cheetah with a mass of 47.0 kg runs at this speed. What is the cheetah’s kinetic energy?
1457 Joules
22,584 Joules
15 Joules
45,167Joules
- 3. Multiple ChoiceWhat would have the greatest kinetic energy?A car driving down a hill.A person running down a hill.A ball rolling down a hill.
- 4. Multiple Choice
The statement that "the energy within a system remains constant and cannot be created or destroyed, only transformed" best sums up _________.
Something Mr. Lance likes to say.
Life
Law of Conservation of Energy
The scientific method
Newton's Third Law
- 5. Multiple ChoiceWhich is the best example that something has kinetic energy?a. a car parked on a steep hillb. a tennis ball rolling across the courtc. a picture hanging on the walld. a piece of coal before it's burned
- 6. Multiple Choice
What is energy?
something that picks up things, like a magnet.
Motion of an object
ability to do work
magic rays of sunshine that come down when you're feeling blue.
- 7. Multiple ChoiceWhat is kinetic energy?energy of workenergy of motionenergy of gravityenergy of power
- 8. Multiple ChoiceThe SI unit in which kinetic energy is measured isNewtonKilogramJoulesMetres per second
- 9. Multiple ChoiceCalculate the kinetic energy of a moving 4 kg object travelling at a velocity of 3 m/s.18 J36 J12 J6 J
- 10. Multiple ChoiceHow much kinetic energy does a moving 6 kg object have if it moves with a velocity of 3 m/s?27 J18 J9 J2 J
- 11. Multiple Choice
What is the kinetic energy of a 4kg shotput thrown with a velocity of 13m/s
676 J
52 J
17J
338 J
- 12. Multiple Choice
What is the kinetic energy of a ball with a mass of 5kg rolling at 10m/s
50 J
500 J
250 J
25 J
- 13. Multiple ChoiceA 60 kg Ewok is travelling at a constant speed of 7 m/s. What is its kinetic energy in KJ?1.47 KJ210 KJ147 KJ1470 KJ
- 14. Multiple ChoiceWhat is the kinetic energy of a 1500 gram object moving at a velocity of 100 m/s112.5 J7,500,000 J75 J7,500 J
- 15. Multiple ChoiceWhat is the kinetic energy of a 25,000g object moving at a velocity of 2.5 m/s78.125 J31250 J781.25 J78,125 J
- 16. Multiple ChoiceHow much kinetic energy does a person of mass 50kg running at 3m/s have? Provide your answer in KJ.225 KJ0.225 KJ75 KJ0.075 KJ
- 17. Multiple ChoiceWhat is the kinetic energy of a 30,000 g object moving at a velocity of 4 m/s. Provide you answer in KJ240,000 KJ240 KJ2400 KJ0.24 KJ
- 18. Multiple ChoiceAs mass increases, KE ...increasesdecreasesstays the same
- 19. Multiple ChoiceRearrange the equation for kinetic energy to make mass the subject of the equation.m = KE/2v2m = 2KE/v2m = v2/2KEm = 2v2/KE
- 20. Multiple ChoiceRearrange the equation for kinetic energy to make velocity squared the subject of the equation.v2 = KE/2mv2 = 2m/KEv2 = 1/2 KE mv2 = 2KE/m
- 21. Multiple ChoiceA golf pro swings his driver which weighs 0.75Kg at a velocity of 60 m/s. Calculate the kinetic energy of the club.2700 J16.9 J1350 J45 J
- 22. Multiple ChoiceAn explosion of gas from a Hawaiian volcano blows a rock into the sky. the rock has 2000J of kinetic energy. What was its mass if the rock had a velocity of 20m/s200Kg20,000Kg10Kg200Kg
- 23. Multiple ChoiceAn 8kg dog chases a cat. if the dog has 400J of kinetic energy. What is the speed of the dog?10 m/s5 m/s1 m/s100 m/s
- 24. Multiple ChoiceWhat is the mass of a moving object that has 100 Joules of kinetic energy and moves at a velocity of 2 m/s?50 kg200 kg25 kg100 kg
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