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8.9.4 Energy California Physical Science
Terms in this set (15)
What factors affect an object's kinetic energy and potential energy?
The kinetic energy of an object depends on both its mass and its speed. An object's gravitational potential energy depends on its weight and on its height relative to a reference point.
How can kinetic energy and potential energy be transformed?
Any object that rises or falls experiences a change in its kinetic and gravitational potential energy.
What is the law of conservation of energy?
According to the law of conservation of energy, energy cannot be created or destroyed.
Done when an object is caused to move a certain distance.
The ability to do work or cause change.
The energy an object has due to its motion.
Stored energy that results from the position or shape of an object.
An object's height related to potential energy.
Gravitational Potential Energy
The potential energy of objects that can be stretched or compressed.
Elastic Potential Energy
An object's combined kinetic energy and potential energy.
When one form of energy is transformed to another, no energy is destroyed in the processed.
Law of Conservation of Energy
What is the mathematical relationship between kinetic energy, mass, and speed?
What is the mathematical relationship between gravitational potential energy, weight, and height?
Gravitational potential energy = Weight x Height
What is the mathematical relationship between mechanical energy, kinetic energy, and potential energy?
Mechanical energy = Kinetic energy + Potential energy
How is energy measured?
In joules (J)
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