A Ball Drops Some Distance and Gains 30 J of Kinetic

question 25

Multiple Choice

A ball drops some distance and gains 30 J of kinetic energy.Do NOT ignore air resistance.How much gravitational potential energy did the ball lose?

• A) more than 30 J
• B) exactly 30 J
• C) less than 30 J

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Definitions:

Reed Relay

A type of relay that uses a pair of magnetic reeds as the switching mechanism, often enclosed in a glass tube to protect against external magnetic fields and contaminants.

Permanent Magnet

A material that maintains a constant magnetic field without the need for electrical power.

Resistance Temperature Detector

A sensor used to measure temperature by correlating the resistance of the RTD element with temperature.