Question

If you rode your bike down a road covered in ice? How might energy values change if you rode your bike down a rocky mountainside?

a) Kinetic energy would increase
b) Potential energy would decrease
c) Mechanical energy would change in both cases
d) Thermal energy would remain constant

Answer 1

The energy values would change if you rode your bike down a road covered in ice and down a rocky mountainside.

Step-by-step explanation:

In both cases, the energy values would change. If you rode your bike down a road covered in ice, the potential energy would decrease and the kinetic energy would increase. This is because potential energy is converted into kinetic energy as the bike gains speed going downhill. On the other hand, if you rode your bike down a rocky mountainside, both the potential energy and kinetic energy would change. As you ride down the slope, the potential energy would decrease and the kinetic energy would increase. However, some of the potential energy would also be converted to heat energy due to the friction.