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1. What is the Kinetic Energy of a car that travels at a speed of 20m/s and has a mass of 1200 kg? 2. What is the Kinetic Energy of a year 11 pupil with a mass of 55kg swinging back on their chair and falling of it at a speed of 0.6m/s? 3. What is the Kinetic Energy of a runner with a mass of 62kg running at a speed of 0.8m/s? 4.
When something or someone is moving that energy shifts to something called kinetic energy. These worksheets will examine all these different forms of energy and how humans harvest this energy and use it to their benefit.
An object gets potential energy from height, mass and gravity. An object with potential energy has the potential to do work. This potential is only released when the object falls. Kinetic Energy. Kinetic Energy is energy of motion. An object gets kinetic energy from its mass and velocity.
KEY. Kinetic Energy Practice Problems. 1. What is the Kinetic Energy of a 150 kg object that is moving with a speed of 15 m/s? KE = 1⁄2 mv2. KE = ? m = 150kg v = 15m/s . KE = 1⁄2 (150kg) (15 m/s)2. KE = 1⁄2 (150kg)(225) KE = 16875J. 2. An object has a kinetic energy of 25 J and a mass of 34 kg , how fast is the object moving? KE = 1⁄2 mv2.
Use the kinetic energy equation to calculate kinetic energies or speeds and to predict the effect of changes in mass or speed upon the kinetic energy. Includes 7 problems. Problem Set WE7: Potential Energy. Calculate gravitational and elastic potential energy values and changes in the potential energy.
Kinetic energy is the energy stored in a moving object. Kinetic energy depends on mass of an object and the speed. Kinetic energy, Ek = ½ x mass x speed2. Kinetic energy (Joules, J) Mass (kilograms, kg) Speed (m/s) If mass increases, so will kinetic energy. They are directly proportional to each other.
Determine whether the objects in the following problems have kinetic or potential energy. Then choose the correct formula to use: KE = 1/2 m v 2 OR PE = mgh = F
