Question

Which of the following statements are correct when you are riding a bicycle?

• A. The energy provided from the digestion of food is used to move the bicycle
• B. The bicycle moves without spending your energy
• C. The bicycle converts your energy into its motion
• D. Kinetic energy is involved in this process

Answer 1

Answer: (A), (C), (D)

The correct options are
A The energy provided from the digestion of food is used to move the bicycle
C The bicycle converts your energy into its motion
D Kinetic energy is involved in this process

The food you eat gives you the energy required to do work. When you are pedalling a bicycle, muscular energy is converted into kinetic energy which results in the motion of the bicycle.
Energy change: energy from food$\to$ muscular energy $\to$ kinetic energy (motion of the bicycle).