Search results
The Curriculum Corner contains a complete ready-to-use curriculum for the high school physics classroom. This collection of pages comprise worksheets in PDF format that developmentally target key concepts and mathematics commonly covered in a high school physics curriculum.
(a) What work was done by the applied force? (b) What is the net force acting on the box? (c) If the box started from rest what is the kinetic energy of the box by the time it reaches a height of 5.0 m? 2. When a 50 kg person is hangs from a 20 m bungee cord it stretches to a length of 32 m.
Work, Energy and Power Review Package. 1) Work: change in energy. Measured in Joules, J. W = Fd and W = ΔE where change in energy can be both KE or PE. Work is scalar but can be negative. To remember this, ask yourself either: • Is the object is losing energy (i.e. ΔE is decreasing) . • Is the force in the opposite direction of motion .
The kinetic energy of an object is a measure of the work and The energy possessed by an object is thus measured in terms of its capacity of doing work. The unit of energy is, therefore, the same as that of work, that is, joule (J). Work energy theorem: The change in kinetic energy of a particle is equal to the work done on it by the net force.
The work energy theorem states that the change in (a) kinetic energy of a particle is equal to the work done on it by the net force. (b) kinetic energy of a particle is equal to the work done by one of the forces acting on it.
Work, Power and Energy Worksheet. Work and Power. 1. Calculate the work done by a 47 N force pushing a pencil 0.26 m. 2. Calculate the work done by a 47 N force pushing a 0.025 kg pencil 0.25 m against a force of 23 N. 3. Calculate the work done by a 2.4 N force pushing a 400. g sandwich across a table 0.75 m wide. 4.
Work W and Energy E. A body that has energy may transfer some, or all, of its energy to another body. The total amount of energy remains constant (conserved) even if it has been transformed to another type. The amount of energy transformed (∆E) is called work W. The body losing energy does work, the body gaining energy has work done on it.
