Motion that occurs in repeated cycles includes all of the following EXCEPT this type of motion
linear
A unit of motion repeated over and over again is called the
cycle.
Oscillating systems
Pendulum, Earth/Sun orbit
The measure of the number of cycles per second is called
frequency.
The unit for measuring the frequency of an oscillating system is the
hertz.
The amount of time required for one cycle to occur is called the
period.
A unit used to measure the period of a cycle is the
second.
In a mechanical system, the distance an oscillator moves from its average position is called
amplitude.
The reason an oscillator may be used to keep time is the
period of each cycle is the same.
A pendulum makes one complete swing over and back in 2.2 seconds. Its frequency is
0.45 hertz.
An insect moves its wings up and down 144 times in three seconds. The period of this movement is
0.0208 seconds.
A string is vibrating at a frequency of 440 hertz. If the frequency is doubled, what happens to the period
The period decreases by 2.
When damping occurs in a moving pendulum system, it may cause the
amplitude of the pendulum to decrease.
A sound wave is transmitted as the compression and expansion of air. What represents one cycle of harmonic motion for a sound wave
A region of high pressure and low pressure
A graph of harmonic motion shows that a cycle lasts 8.0 seconds. What is the frequency of this oscillator
0.125 hertz
The period of a pendulum multiplied by its frequency (T x f) equals
the number one.
Assuming that it takes exactly 24 hours for Earth to rotate on its axis, the frequency of rotation of Earth measured in hertz is
0.125 seconds
The unit most frequently used to measure the phase relationship between pans of the cycle of an oscillator is the
degree.
One full cycle of hannonic motion is represented by this many degrees
360
Two oscillators that are 180 degrees out of phase are
one-half of a cycle apart.
Resonance occurs for a system in harmonic motion when the
frequency of the periodic force equals the natural frequency of the system.
If you triple the mass on a pendulum bob, the period of the pendulum
does not change.
The force that brings the motion of an oscillator toward its equilibrium position is called
restoring force
You can change the natural frequency of a pendulum by changing the
length of the pendulum string.
As an oscillating spring is moved farther from its equilibrium position, the
energy does not change.