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 is wasted during a bike ride through various mechanisms such as air resistance, rolling resistance, and mechanical inefficiencies in the bike's components. When pedaling, a portion of the energy generated is converted into heat due to friction and air resistance, rather than solely being used to propel the bike forward, resulting in thermal energy loss.
During a bike ride, your body generates thermal energy as heat due to muscle and metabolic activities. This energy is not wasted because it helps keep your body warm and contributes to maintaining your core body temperature. Additionally, some of this thermal energy is transferred to the environment through sweating and breathing.
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.
When you eat a hamburger, your body converts the chemical energy in the food into mechanical energy to fuel your movements. When you ride your bike, your muscles convert that stored chemical energy into mechanical energy to propel the bike forward. Overall, the energy transformations involve chemical energy from the food being converted to mechanical energy for movement.
I chose the mountain bike for your 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
It depends on how fast you can ride a bike!
You ride a bike because it has to be balanced by the operator.