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Teacher Toolkit - The Basics of Work, Energy, and Power Objectives: 1. To describe the conditions under which positive and negative work are done and to use the work equation to calculate the amount of work done. 2. To define potential energy, to identify the two forms and the variables that affect the amount of each form, and
Work Practice Problems Worksheet #1 ANSWER KEY. 1) Amy uses 20N of force to push a lawn mower 10 meters. How much work does she do? Work = Force X Distance Work = 20N X 10m Work = 200 J. 2) How much work does an elephant do while moving a circus wagon 20 meters with a pulling force of 200N?
The Basics of Work, Energy, and Power Objectives: 1. To describe the conditions under which positive and negative work are done and to use the work equation to calculate the amount of work done. 2. To define potential energy, to identify the two forms and the variables that affect the
ADA - KS3 Knowledge series | Physics | Energy/ work, food energy | Kevin Brace | 2017 Page 16 of 23 Task: Define the term work in relation to e nergy transfer. Task: Identify the (input) force and distance covered for these working horses, by pulling a plough behind them. Use correct SI units for force and distance.
The work done by a force is defined as the product of the displacement and the component of the force acting in the direction of the displacement, measured in Joules. (W = F.s) OR the amount of energy transferred by the force. Kinetic energy (E k) is the energy possessed by a body due to its motion. (E k = ½ mv 2)
Like so many other things in physics we have to use an exact definition to really explain what work is. In fact, we have to use two definitions of work. Definition 1: Work is a transfer of energy. This is probably the most basic definition possible, but it still has many ways of being interpreted.
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.
