Work,power,ENERGY 🔴 Flashcards
1
Q
Energy
A
The property of an object that enables it to do work is energy
2
Q
Energy is measured in…
A
Joules (j)
3
Q
Mechanical energy
A
Energy due to the position of something or the movement of something
4
Q
Potential energy
A
Gravitational potential Energy is equal to the work done against gravity in lifting it
5
Q
Kinetic Energy
A
Moving object is capable of doing work /energy of motion
6
Q
The law of conservation of energy
A
Energy can neither be created nor destroyed; rather energy is conserved
Energy changes from one form to another while the total energy of the system remains constant
7
Q
Work
A
Moving something twice the distance requires twice the work
Force and direction must be parallel
8
Q
Power
A
Half the time requires twice the power
9
Q
1 hp =___watts
A
750
