Mechanical Energy Flashcards
What is gravitational energy?
Stored energy in an object due to the influence of the mass of the object, it’s height above a surface and gravity?
What is the difference between mass and and weight?
Mass is the actual amount of a substance of an object while weight is the force with which the earth pulls a body towards its centre.
What is kinetic energy?
The energy that an object has due to its motion
What is mechanical energy?
The energy which is possessed by an object due to its motion(kinetic energy) and its position (gravitational potential energy). It is the sum of the gravitational potential energy and kinetic energy of an object
What is the law of conservation of mechanical energy?
It states that mechanical energy in a closed system, in the absence of friction, remains constant
