First it's the rider, who'll be turning chemical energy from the food he's eaten into kinetic energy in the moving bike. his muscles will warm up, he'll sweat and that'll be wasted thermal energy. Then ther are the brakes. Every time he brakes he'll introduce friction, which'll generate heat that can't be used for anything. Then there's the tires, even if pumped up good they'll squash a little under his weight. They warm up b/c of the deformation and lose energy that way.
And the least amount is bearings. Bearing will always have some friction, which generates warmth, which is wasted.
Thermal energy (= heat) is the type of energy that is hardest to collect, transfer, and use for something else. Mostly it just dissipates out into the surroundings w/o being to any further use.
The brakes of a vehicle, getting hot when they're used.
it isn't
Thermal energy is produced during a bike ride. It is produced by the body, which is why you sweat, the friction between all moving parts of the bike and even between the tyres and the road
Not really. You'll get a bit of heat(thermal energy) in brakes, poorly maintaned bearings and in the rider's muscles - but that's all just unavoidable losses, and isn't helping the ride at all.
kinetic energy
Electrical, Thermal, and Sound Energy.
Because a light bike is an advantage in a race. It accelerates quicker, and takes less energy to ride uphill.
Friction on the tracks of the ride.
No, it is illegal to ride a dirt bike on the street but you can ride it on a trail or dirt bike track.
Get a bike and ride it
You ride a bike because it has to be balanced by the operator.
It depends on how fast you can ride a bike!
chemical energy from food the rider has eaten gets turne into kinetic energy as the bike is moving. Then into potential energy as the bike heads uphill. As the bike heads down potential energy turns into kinetic energy.