Electricity at Home Electrical energy Power rating of electrical appliances End-use energy efficiency Cooking Electric hot plates Induction cookers
Electrical Power and Energy Read from Lessons 2 and 3 of the Current Electricity chapter at The Physics Classroom: http://www.physicsclassroom.com/Class/circuits/u9l2d.html http://www.physicsclassroom.com/Class/circuits/u9l3d.html
PHYSICS 1103 – PERIOD 1 How can ratios be used to solve problems? How efficient is energy use? How can scientific notation simplify solutions?
Energy and Efficiency Measuring energy output, efficiency for the human body Opening Remarks It frequently happens that in the ordinary affairs and occupations of life, opportunities present
From the definition of work, 'force the fundamental laws of physics. Comparison of the Three Methods By grouping Equations 1, 2 and 3, Then the actual kinetic energy of the jet (whatever its efficiency) is consider
Chapter 4 EFFICIENCY OF ENERGY CONVERSION The National Energy Strategy reflects a National commitment to greater efficiency in every element of energy production and use.
THERMAL PHYSICS Beginning Definition Thermal Physics is the study of large numbers of particles (1023) using laws and models that are formulated using measurable physical variables such as: energy, velocity, temperature, volume, pressure, momentum, heat capacity,
Energy Updated: 2012Oct16 Physics: Mechanics 1 V. Energy • Formal definition uses the “dot product” between vectors • Hence if force is opposite Efficiency = B. Kinetic Energy 1. Work-Energy Theorem 2. Rotational Energy 3.
6 commonly, efficiency is related to the ratio Hin η between the long term averages of the work and of total energy flux Hin entering the system.