Chapter 11 Vibrations and Waves Practice

At the equilibrium position, speed

• reaches a maximum

• reaches a minimum

• is constant

The period of a pendulum may be decreased by

• shortening its length.

• increasing the mass of the bob.

• moving its equilibrium point.

• decreasing the mass of the bob.

As the swinging bob of a pendulum moves farther from its equilibrium position, the pendulum’s _______________ increases.

• frequency

• mass

• restoring force

• length

The gravitational potential energy of the bob of a swinging pendulum is at its maximum when the bob is at

• maximum displacement.

• the equilibrium point.

• the center of its swing.

• minimum displacement.

Tags

NGSS.MS-PS3-2

Stretching a spring increases its ______________ energy.

• mechanical kinetic

• gravitational potential

• vibrational kinetic

• elastic potential

What is the spring constant of a spring that stretches a distance of 0.085 m when a weight of 3.64 N is hung on it? F_elastic = -k x

• .31 N/m

• 43 N/m

• 13 N/m

• 34 N/m

In a system in simple harmonic motion, the amplitude depends on

• frequency.

• wavelength.

• the position of the equilibrium point.

• maximum displacement from the equilibrium point.

In an oscillating mass-spring system, the distance of the maximum compression of the spring is a measure of

• amplitude

• frequency

• period

• equilibrium

A total of 5 s passes as a child completes one complete swing on a playground swing. The period of the swing is

• 1/5 s

• 20 s

• 5 s

• 1 s

The frequency of a certain pendulum is 0.5 Hz. The period of this pendulum is (T = 1/f)

• 0.2 s

• 0.5 s

• 2 s

• 5 s