Question

what are free, forced and resonant oscillations ​

Answer 1

Answer:

Free oscillations, forced oscillations and resonance. If an oscillator is displaced and then released it will begin to vibrate. If no more external forces are applied to the system it is a free oscillator. If a force is continually or repeatedly applied to keep the oscillation going, it is a forced oscillator.

Answer 2

Answer:

1. Definition: Damped oscillation is the oscillation with decreasing amplitude over time.                                                                                                                b) Cause: Due to resistance and friction of the environment - The faster the vibration shuts down the more viscous the environment (the greater the drag) and vice versa. - The smaller the oscillation frequency (the larger the oscillation cycle), the slower the oscillation off.

2.

Resonance is the phenomenon that occurs in forced oscillations or an oscillator is excited by a circulating external force that has the same frequency as its own vibration. Resonance can occur in many types of oscillations such as electromagnetic oscillations, mechanical vibrations. When there is resonance, the amplitude of oscillation reaches the maximum value.

Explanation: