LU 10: Simple Harmonic Motion (Day 1)

Simple Harmonic Motion (SHM) is a .................... motion of a body between two fixed positions without loss of energy.

• continuous

• periodic

• inconsistent

A block is attached to a spring on a frictionless surface.

The block is at the equilibrium position when the spring is ......

• stretched

• compressed

• both stretched and compressed

• neither stretched nor compressed

Which of the following is FALSE?

When a body in SHM is at the point of equilibrium, .............

• displacement, x = 0

• acceleration, a = 0

• resultant force acting on the body, F = 1

Answer explanation

The resultant force on the body in SHM, F is equal to 0 since the normal force cancel out the weight force ----- F = 0 .

Answer explanation

• phase angle

• phase constant