Crowdly

conversion to gravitational potential energy

air resistance only

internal deformation and heat loss.

The dominant source of systematic error in a ballistic pendulum experiment arises from

readability of the scale

parallax only

random fluctuation of time

pivot friction and air resistance

The ballistic pendulum method becomes unreliable for very small bullet masses because

collision becomes elastic

the angular deflection becomes too small

time measurement dominates

gravity becomes negligible

Permanent deformation of a spring occurs when the applied load exceeds the

yield stress

elastic limit

limit of proportionality

safe working load

The most critical precaution in Hooke’s law experiment is to ensure that

the scale is horizontal

loads are added gradually

readings are taken quickly

the spring is long

Random errors in pendulum experiments are best minimized by

using longer strings

increasing amplitude

taking repeated measurements

using heavier bobs

The dynamic method of determining spring constant relies on

uniform circular motion

simple harmonic motion

rotational equilibrium

projectile motion

Hooke’s law remains valid only up to the

ultimate stress

breaking point

yield point

limit of proportionality

The restoring force in a simple pendulum is directly proportional to displacement only when

air resistance is zero

the oscillation amplitude is small

the bob is massive

the string is heavy

The collision phase of a ballistic pendulum experiment is analysed using which fundamental principle?

Conservation of mechanical energy

Conservation of angular momentum

Conservation of linear momentum

Conservation of power