CPO Chapter 9

The number of cycles an oscillator completes in one second is known as the ________________ of the oscillator.

• period

• frequency

• amplitude

• decibel

A force that always acts to pull a system back towards its equilibrium position is called a _________________ force.

• transverse

• constructive

• restoring

• longitudal

When a periodic force applied to an oscillator matches the natural frequency of the oscillator, _____________ occurs.

• destructive interference

• diffration

• refraction

• resonance

Any motion that repeats over and over may be called ______________ motion.

• linear

• harmonic

• circular

• pendulum

The graph above shows the motion of an oscillator. What is the amplitude?

• 1 cm

• 2 cm

• 3 cm

• 2 sec

The graph above represents the motion of a pendulum that was allowed to swing for 4.0 seconds: What letter correctly identifies the amplitude?

• A

• B

• C

• D

The graph above represents the motion of a pendulum that was allowed to swing for 4.0 seconds: What letter correctly identifies the wavelength?

• A

• B

• C

• D

Which graph above has a frequency of 0.5Hz?

• Graph A

• Graph B

• Graph C

• Graph B and C

Which graph above has a period of 1.5 sec?

• Graph A

• Graph B

• Graph C

• Graph B and C

If 12 waves pass a point in 4 seconds, the frequency of the vibration is:

• 3 Hz

• 4 Hz

• 8 Hz

• 48 Hz