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Force Study Guide

Force Study Guide. A force does work on an object if a component of the force is. A child moving at constant velocity carries a 2 N ice-cream cone 1 m across a level surface. What is the net work done on the ice-cream cone?. 0 Joules.

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Force Study Guide

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  1. Force Study Guide

  2. A force does work on an object if a component of the force is

  3. A child moving at constant velocity carries a 2 N ice-cream cone 1 m across a level surface. What is the net work done on the ice-cream cone? 0 Joules

  4. A construction worker pushes a wheelbarrow 5.0 m with a horizontal force of 50.0 N. How much work is done by the worker on the wheelbarrow? • W = F*d • W = 50.0N * 5.0 m = 250J

  5. An object in motion has what type of energy associated with it? Kinetic Energy

  6. What type of energy can be associated with an objects position? Potential Energy

  7. What is the mathematical definition of kinetic energy?

  8. What is the kinetic energy of a 0.12 kg baseball thrown at 30.0 m/s? KE = ½(0.12kg * (30.0m/s)2= 54J

  9. What is the mathematical definition of work-energy theorem?

  10. Robert Hooke Who described the mathematical expression F = -kx, which states that the force needed to stretch or compress a spring some distance is proportional to that distance?

  11. What is the mathematical definition of the elastic potential of a spring? PEs = ½kx2

  12. What is the potential energy of a 1.0 kg mass 1.0 m above the ground if PEg = mgh? 9.8J

  13. What is the mathematical definition of power, P? P = ΔW t

  14. What is the average power supplied by a 60.0 kg person running up a flight of stairs a vertical distance of 8.0 m in 6.3 s? 750 Watts

  15. What is the mathematical expression for the work-energy theorem that includes both gravitational potential energy and elastic potential energy? Wnc= ΔKE+ΔPEg+ΔPEs

  16. The End! The End! The End! The End! The End! The End! The End!

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