   Chapter 1, Problem 22PS

Chapter
Section
Textbook Problem

Determine whether kinetic energy is being converted to potential energy, or vice versa, in the following processes.(a) Water cascades downward in a waterfall.(b) A player kicks a football.(c) An electric current is generated by a chemical reaction in a battery.(d) Water boils when heated on a gas stove.

(a)

Interpretation Introduction

Interpretation:

The conversion of kinetic energy into potential energy or the vice versa in the given process has to be determined.

Concept introduction:

Energy:

Energy is the capacity to do work, and can neither be created nor destroyed.  Generally, chemical reaction almost always either release or absorb energy.

Types of energy:

Kinetic energy is the energy associated with motion.  Thermal energy, mechanical energy, electrical energy, and acoustic energy are categorized in kinetic energy.

Potential energy is the energy results from an object’s position or state.  Gravitational energy, chemical energy, and electrostatic energy are categorized in potential energy.

Explanation

The water is higher in the gravitational field of earth and possess gravitational potenti...

(b)

Interpretation Introduction

Interpretation:

The conversion of kinetic energy into potential energy or the vice versa in the given has to be determined.

Concept introduction:

Energy:

Energy is the capacity to do work, and can neither be created nor destroyed.  Generally, chemical reaction almost always either release or absorb energy.

Types of energy:

Kinetic energy is the energy associated with motion.  Thermal energy, mechanical energy, electrical energy, and acoustic energy are categorized in kinetic energy.

Potential energy is the energy results from an object’s position or state.  Gravitational energy, chemical energy, and electrostatic energy are categorized in potential energy.

(c)

Interpretation Introduction

Interpretation:

The conversion of kinetic energy into potential energy or the vice versa in the given has to be determined.

Concept introduction:

Energy:

Energy is the capacity to do work, and can neither be created nor destroyed.  Generally, chemical reaction almost always either release or absorb energy.

Types of energy:

Kinetic energy is the energy associated with motion.  Thermal energy, mechanical energy, electrical energy, and acoustic energy are categorized in kinetic energy.

Potential energy is the energy results from an object’s position or state.  Gravitational energy, chemical energy, and electrostatic energy are categorized in potential energy.

(d)

Interpretation Introduction

Interpretation:

The conversion of kinetic energy into potential energy or the vice versa in the given has to be determined.

Concept introduction:

Energy:

Energy is the capacity to do work, and can neither be created nor destroyed.  Generally, chemical reaction almost always either release or absorb energy.

Types of energy:

Kinetic energy is the energy associated with motion.  Thermal energy, mechanical energy, electrical energy, and acoustic energy are categorized in kinetic energy.

Potential energy is the energy results from an object’s position or state.  Gravitational energy, chemical energy, and electrostatic energy are categorized in potential energy.

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