Final answer:
Over or under inflated tires will not minimize wear and may decrease fuel economy. The statement that over or under inflated tires maximize wear and fuel economy is false; correct tire pressure is essential for safety, economy, and tire longevity.
Step-by-step explanation:
False. Overinflated or underinflated tires can actually lead to increased wear and reduced fuel efficiency. When a tire is overinflated, the contact area with the road decreases, causing the tire to wear more in the center and reducing traction. On the other hand, underinflated tires have increased rolling resistance, which can lead to more fuel consumption. The best practice is to maintain the recommended tire pressure specified by the manufacturer.
The statement that over or under inflated tires maximize wear and fuel economy is false; correct tire pressure is essential for safety, economy, and tire longevity. More friction is also desirable in vehicle brakes and rock climbing. Energy conversion from potential to kinetic while cycling uphill can be exhausting.
The statement that over or under inflated tires will minimize wear and help your vehicle obtain the best possible fuel economy is false. It is crucial to maintain the proper air pressure in your vehicle's tires, which is usually between 32-35 psi as specified by the manufacturer. This optimal tire pressure ensures a smoother and safer ride, better gas mileage, and decreased tire wear. Tire pressure should be measured when the tires are cold, as driving a car warms up the air inside the tires and increases the pressure.
Another situation where more friction is desirable is with brakes on a vehicle; they require sufficient friction to stop the car effectively. Additionally, in sports like rock climbing, good grip or friction between the climbing shoes and the rock surface is essential for safety.
Regarding potential energy converting to heat, true or false—the statement is true. As a cyclist coasts down one hill and up another, friction between the tires and the road generates heat, converting some of the potential energy to thermal energy, which is why the bicycle's tires get warm.
Increasing potential energy while riding a bicycle up a hill is indeed easier than converting it to kinetic energy, which involves a lot of physical effort and would likely make the rider feel exhausted. This understates the energy conversion challenge when cycling uphill.