What is resonance
Resonance is the effect of an external driving force which causes a system to ocsillate with a greater amplitude at certain frequencies. All objects have a natural frequency, and this specific property determines the frequency at which resonance occurs. When the force acting on the object is applied in a frequency which matches the objects natural frequency, there is a maximun energy transfer to the system and thus the system oscillates at a greater amplitude
MC
Related Physics A Level answers
All answers ▸A car of mass m travelling with a velocity v comes to rest over a distance d in time t. The constant frictional force acting on the car while it is braking is found using:
A small ball of mass 150 g is placed at a height of 20cm above the ground on an incline of 35°. It is released and allowed to roll down the slope; what will be the ball's speed when it reaches the ground? Assume friction and air resistance can be ignored.
Explain how fluorescent tubes work
A man weighing 600N steps on a scale that contains a spring. The spring is compressed 1cm under their weight. Find the force constant of the spring and total work done on its compression.