Chapter 23 Waves: Assessment Vocabulary

This kind of force pulls a system back to equilibrium:___________.

• restoring force

• periodic force

• equal force

• Jedi force

The harmonic motion of a boy on a swing is like the motion of a(an) _______________________.

• wave

• reflection

• natural frequency

• pendulum

A pendulum is a kind of ________________ in that it has repeating cycles of motion.

• linear motion

• cycle

• resonance

• oscillator

The note A in the musical scale has a(n) _________ 220 Hz.

• period

• frequency

• amplitude

• cycle

One unit of harmonic motion is called a(n) _______________.

• cycle

• period

• amplitude

• hertz

The motion of a girl running is called ____________, and the motion of a girl riding a Ferris wheel is called _______________.

• harmonic motions, linear motion

• linear motion, harmonic motion

• restoring force, periodic force

• diffraction, hertz

The formula for _____________ is the inverse of the formula for frequency.

• cycle

• hertz

• amplitude

• period

One ___________ equals one cycle per second.

• period

• hertz

• cycle

• frequency

When the periodic force matches the natural frequency of an object, the object experiences _______________.

• resonance

• equilibrium

• diffraction

• restoring force

To have a high ________________ on a swing, your friends needs to push you with a large __________.

• amplitude, periodic force

• periodic force, amplitude

• resonance, restoring force

• periodic force, linear motion