quiz1

The length ‘L’ of a simple pendulum oscillating with a period T is modified as 4L , what is the new period of oscillations in terms of T

• 2T

• 4T

• T

• 12T

In cars, springs are damped by

• shock absorbers

• engine

• tyres

• brake pedals

Maximum displacement from equilibrium position is

• frequency

• amplitude

• time period

• wavelength

Displacement-time graph depicting an oscillatory motion is

• cosine curve

• sine curve

• tangent curve

• straight line

In S.H.M. velocity at equilibrium position is

• maximum

• minimum

• constant

• zero

Natural frequency of a guitar string can be changed by changing it's

• area

• diameter

• length

• stiffness

Over-damping results in

• slow return to equilibrium

• fast return to equilibrium

• equilibrium not attainable

• arrythmic return to equilibrium

Our eyes detect the oscillations up to

• 8Hz

• 5Hz

• 12Hz

• 10Hz

For S.H.M, maximum speed is proportional to

• wavelength

• acceleration

• time

• frequency

A force that acts to return the mass to its equilibrium position is called

• frictional force

• restoring force

• normal force

• contact force