Integrated Science
7th Edition
ISBN: 9780077862602
Author: Tillery, Bill W.
Publisher: Mcgraw-hill,
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Chapter 3.3, Problem 10SC
To determine
The explanation of the law of conservation of energy.
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A person is walking on level ground at constant speed. What energy transformation is taking place?A. Chemical energy is being transformed to thermal energy.B. Chemical energy is being transformed to kinetic energy.C. Chemical energy is being transformed to kinetic energy and thermal energy.D. Chemical energy and thermal energy are being transformed to kinetic energy.
How can energy be transferred to and from a system?
a. Energy can only be transferred as heat.
b. Energy can only be transferred as work.
c. Energy can be transferred as heat and/ or work.
d. Energy can only be transferred as potential energy being converted to kinetic energy.
Which of the following statements are FALSE?
A. Energy is a vector physical quantity.
B. Energy is always required to do work.
C. Total mechanical energy can never be zero.
D. When law of conservation of mechanical energy is invoked, there can never be a waste energy in an ideal system.
E. When law of conservation of mechanical energy is invoked, there can never be a waste energy in a real-world system.
F. Kinetic energy can be negative.
G. Potential energy can be negative.
H. Work is equivalent to the negative change in kinetic energy.
I. Work is equivalent to the negative change in potential energy.
J. In a conservative system where only gravitational force acts, the total mechanical energy is constant at every point of the motion.
K. In a non-conservative system where certain external forces may act, the total mechanical energy is not constant at every point of the motion.
L. The entire universe may be considered as a closed system where the total energy is constant.
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Chapter 3 Solutions
Integrated Science
Ch. 3.1 - The metric unit of a joule (J) is a unit of a....Ch. 3.1 - Prob. 2SCCh. 3.1 - Prob. 3SCCh. 3.1 - About how many watts are equivalent to 1...Ch. 3.1 - A kilowatt-hour is a unit of a. power. b. work. c....Ch. 3.2 - The potential energy of a book on a shelf,...Ch. 3.2 - Prob. 7SCCh. 3.2 - Prob. 8SCCh. 3.3 - Prob. 9SCCh. 3.3 - Prob. 10SC
Ch. 3.4 - The accounting device of a barrel of oil is...Ch. 3.4 - The most widely used source of energy today is a....Ch. 3 - How is work related to energy?Ch. 3 - Prob. 2CQCh. 3 - Prob. 3CQCh. 3 - Prob. 4CQCh. 3 - Prob. 5CQCh. 3 - Prob. 6CQCh. 3 - Prob. 7CQCh. 3 - Prob. 8CQCh. 3 - Prob. 9CQCh. 3 - Prob. 10CQCh. 3 - Prob. 11CQCh. 3 - Prob. 12CQCh. 3 - Prob. 13CQCh. 3 - Prob. 14CQCh. 3 - Prob. 15CQCh. 3 - Prob. 16CQCh. 3 - Prob. 17CQCh. 3 - Prob. 18CQCh. 3 - Prob. 19CQCh. 3 - Prob. 20CQCh. 3 - Prob. 21CQCh. 3 - A force of 200 N is needed to push a table across...Ch. 3 - Prob. 2PEACh. 3 - Prob. 3PEACh. 3 - Prob. 4PEACh. 3 - Prob. 5PEACh. 3 - Prob. 6PEACh. 3 - Prob. 7PEACh. 3 - Prob. 8PEACh. 3 - Prob. 9PEACh. 3 - (a) How much work is done in moving a 2.0 kg book...Ch. 3 - Prob. 11PEACh. 3 - Prob. 12PEACh. 3 - Work of 1,200 J is done while pushing a crate...Ch. 3 - How much work is done by a hammer that exerts a...Ch. 3 - A 5.0 kg textbook is raised a distance of 30.0 cm...Ch. 3 - An electric hoist does 196,000 J of work in...Ch. 3 - What is the horsepower of a 1,500.0 kg car that...Ch. 3 - What is the kinetic energy of a 30.0 g bullet that...Ch. 3 - How much work will be done by a 30.0 g bullet...Ch. 3 - A 10.0 kg box is lifted 15 m above the ground by a...Ch. 3 - A force of 50.0 lb is used to push a box 10.0 ft...Ch. 3 - Prob. 10PEBCh. 3 - Prob. 11PEBCh. 3 - A 70.0 kg student runs up the stairs of a football...
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