Multiple Choice
Which of the following molecules is likely to have the most potential energy?
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8. Thermochemistry
Kinetic & Potential Energy
Multiple Choice
Which of the following units is commonly used to measure the amount of energy an object has?
A
Meter (m)
B
Newton (N)
C
Joule (J)
D
Watt (W)
Verified step by step guidance1
Understand that energy is a physical quantity that represents the capacity to do work or produce heat.
Recall the common units used in physics and chemistry: Meter (m) measures length, Newton (N) measures force, Watt (W) measures power (rate of energy transfer), and Joule (J) measures energy.
Recognize that the Joule (J) is defined as the amount of energy transferred when a force of one Newton moves an object one meter in the direction of the force.
Express the Joule in terms of base units: \(J = N \cdot m = (kg \cdot m/s^2) \cdot m = kg \cdot m^2/s^2\).
Conclude that the unit commonly used to measure the amount of energy an object has is the Joule (J).
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