Using Energy Flashcards
What is the meaning of Kinetic Energy?
Energy of a moving object due to it’s motion (in joules)=Mass (in kilograms, kg) x (speed)2 (in m2/s2)
What is the meaning of Gravitational Potential Energy?
Energy of an object die to it’s position in a gravitational field. Near the earth’s surface, change of GPE (in joules) = weight (in newtons) x vertical distance moved (in meters)
What is the meaning of Elastic Potential?
Energy stored in an elastic object when work is done to change it’s shape.
What is the meaning of Electrical Energy?
Energy transferred by the movement of electrical charge.
What is the meaning of Conservation of energy?
Energy cannot be created or destroyed.
What is the meaning of Wasted Energy?
Energy that is not usefully transferred.
What is the meaning of Useful Energy?
Energy transferred to where it is wanted in the form it’s wanted.
What is the meaning of Sankey Diagram?
And energy transfer diagram.
What is the meaning of Efficiency?
Useful energy transferred by a devise/total energy supplies to the devise.
What is the formula for Efficiency?
Useful energy transferred by the devise / total energy supplied to the devise x 100%
What is the meaning of Chemical Energy?
Energy of an object due to chemical reactions in it.
