Shock absorbing gear converts motion into energy, usually in the form of heat.

• A. Motion into heat
• B. Motion into electricity
• C. Vibration into heat
• D. Pressure into light

Answer: (A)

Shock absorbing gear works as a damper that removes the energy of motion as it moves during landing. Inside the damper, hydraulic fluid is forced through restricted paths as the piston travels. The viscous resistance and friction in those paths convert the mechanical energy from the landing motion into heat in the fluid and the damper itself. This dissipation slows the motion and helps limit loads on the structure, giving a smoother, controlled stop.

That’s why the best answer is motion into heat: the energy from the gear’s movement is primarily turned into thermal energy rather than stored or converted into electricity or light. Some systems can recover or store energy in special configurations, but a typical shock absorber’s main function is to dissipate energy as heat.