Physics for IGCSE & O level - Forces And Motion (Section 5 - No. 15)
How does friction affect the energy in a system?
It converts kinetic energy into potential energy.
It decreases the kinetic energy of the system.
It converts kinetic energy into thermal energy.
It has no impact on the energy within the system.
คำอธิบาย
Friction converts kinetic energy into thermal energy (heat).