Lights and computers use electrical energy. The production of heat is an unwanted side effect, but it gets produced from the use of this same electrical energy.
Thermal energy heats your house in the winter.
Computers do not produce energy, they use/consume energy.
Chemical energy to electrical energy.
Turning off unused lights is an example of Energy Conversion. Energy conversion is the process of chaning one form of energy to another.
Usually - but not always - electricity powers our lights and appliances.
Heat energy, more specifically you can use radiant (usually electric), Convection (forced or natural [either gas or electric]) or conduction (electric usually)
first of all what type of lever, if it's the kind that you tern things like lights on with then it mechanical energy
A light bulb is not energy, but is a device that uses electrical energy to create electromagnetic energy in the form (in part) of visible light and heat.
From chemical to heat and light. Batteries are chemical energy, the bulb emits lights but also gives out heat.
In Reykjavík all homes and businesses are heated by geothermal energy. Steam and hot water is drawn from beneath the surface and distributed via underground pipelines.
heat wave
apple computers sell what kind of roducts?