Conservation of energy Flashcards
(6 cards)
1
Q
What is the equation for Change in gravitational potential energy
A
ΔGPE = m × g × Δh
2
Q
Equation for kinetic energy
A
KE=1/2mv²
3
Q
What is meant by the conservation of energy
A
Energy can neither be destroyed nor created
4
Q
Why can mechanical processes be wasteful
A
They give out heat energy to the surrounding area
5
Q
Give examples of reducing energy loss
A
Lubrication,Insulation
6
Q
What are the main energy sources available to us
A
fossil fuels, nuclear fuel, bio-fuel, wind, hydroelectricity, the tides and the Sun
