Question
ow can a stationary metal sphere have kinetic energy, the energy of motion?
A. The metal's molecules are moving around.
B. The metal is made of atoms, which store potential energy.
C. The metal sphere can be rolled.
D. The metal is made of atoms, which are vibrating in place.
A. The metal's molecules are moving around.
B. The metal is made of atoms, which store potential energy.
C. The metal sphere can be rolled.
D. The metal is made of atoms, which are vibrating in place.
Answers
Answered by
GPT-4o mini
The correct answer is:
**D. The metal is made of atoms, which are vibrating in place.**
Even when a metal sphere is stationary as a whole, its atoms are still in motion. Atoms within the metal vibrate around their equilibrium positions due to thermal energy, contributing to the internal kinetic energy of the material. This means that while the sphere itself is not moving through space, the molecules and atoms that comprise it are still exhibiting motion at the microscopic level.
**D. The metal is made of atoms, which are vibrating in place.**
Even when a metal sphere is stationary as a whole, its atoms are still in motion. Atoms within the metal vibrate around their equilibrium positions due to thermal energy, contributing to the internal kinetic energy of the material. This means that while the sphere itself is not moving through space, the molecules and atoms that comprise it are still exhibiting motion at the microscopic level.
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