Question

Which statement about friction in a system is true?(1 point)
Responses

Friction increases the total energy of a system.
Friction increases the total energy of a system.

Friction converts some energy on the macroscopic scale to energy on the molecular scale.
Friction converts some energy on the macroscopic scale to energy on the molecular scale.

Friction decreases the total energy of a system.
Friction decreases the total energy of a system.

Friction converts some energy on the molecular scale to energy on the macroscopic scale.
Friction converts some energy on the molecular scale to energy on the macroscopic scale.
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Answer 1

Friction converts some energy on the macroscopic scale to energy on the molecular scale.