KIDS TRIVIA

Detailed explanation-1: -Vibration means move back and forth quickly.

Detailed explanation-2: -As an adjective, back-and-forth describes a movement from one point to another and then back to the original point, as in The audience stared at the back-and-forth movements of the hypnotist’s watch. Such a movement might be forward and backward and forward again or from one side to another and back to the first side.

Detailed explanation-3: -Acceleration (measure of vibration intensity) Speed of vibration is expressed in units of metres per second (m/s). Acceleration is a measure of how quickly speed changes with time. The measure of acceleration is expressed in units of (metres per second) per second or metres per second squared (m/s2).