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Chapter 7: Q17 CQ (page 259)

List the energy conversions that occur when riding a bicycle.

Short Answer

Expert verified

When a rider is riding the bicycle, he uses his muscular energy to push the pedals of the bicycle. While pedaling muscular energy is converted into kinetic energy.

Step by step solution

01

Step 1: Definition of Concepts

Conversion of energy:Energy cannot be created or destroyed; it can only be transformed from one form to another.

02

Explain the energy conversions that occur when riding a bicycle

When a rider is riding the bicycle, he uses his muscular energy to push the pedals of the bicycle. While pedaling muscular energy is converted into rotational kinetic energy which is transferred to the wheels of the bicycle due to which the bicycle moves forwards.

Therefore, the bicycle and rider both have kinetic energy.

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Most popular questions from this chapter

(a) Find the useful power output of an elevator motor that lifts a \(2500 - {\rm{kg}}\) load a height of \(35.0{\rm{ m}}\) in \(12.0{\rm{ s}}\), if it also increases the speed from rest to \(4.00{\rm{ m}}/{\rm{s}}\). Note that the total mass of the counterbalanced system is \(10,000{\rm{ kg}} - \)so that only \(2500{\rm{ kg}}\) is raised in height, but the full \(10,000{\rm{ kg}}\) is accelerated.

(b) What does it cost, if electricity is \(\$ 0.0900{\rm{ per kW}} \cdot {\rm{h}}\)?

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