A “seconds pendulum” has
a half period of
one second. It takes one second for it to go out (tick) and another second for it to come back (tock).
What is the period of a pendulum that takes one second to make a complete back-and-forth vibration S?
| What is a wiggle in time called? A vibration | What is the period of a pendulum? The time of a to and fro swing | If a pendulum takes one second to make a comlete to and fro swing, how great is its period? one vibration per second |
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What is the time it takes for one complete back-and-forth vibration called?
A complete back-and-forth vibration is
one cycle
. If it occurs in one second, the frequency is one vibration per second or one cycle per second. If two vibrations occur in one sec- ond, the frequency is two vibrations or two cycles per second. The unit of frequency is called the hertz (Hz).
How does a sine curve relate to the wave description? A sine curve is
a pictorial representation of a wave
. Distinguish among these different aspects of a wave: period, amplitude, wavelength, and frequency. … Frequency is the number of to-and-fro vibrations it makes in a given time.
What is meant by the period of a pendulum quizlet?
What is meant by the period of a pendulum?
the time a pendulum takes to swing to-and-fro
. … Period is the time from one crest to the next, amplitude is the distance from the midpoint to a crest, wavelength is the distance from one crest to the next, and frequency is the number of crests that pass per second.
What is the period of motion?
The period of the object’s motion is defined as
the time for the object to complete one full cycle
. Being a time, the period is measured in units such as seconds, milliseconds, days or even years. The standard metric unit for period is the second. An object in periodic motion can have a long period or a short period.
How do you calculate period of motion?
The angular frequency depends only on the force constant and the mass, and not the amplitude. The angular frequency is defined as ω = 2 π / T , ω = 2 π / T , which yields an equation for the period of the motion:
T = 2 π m k .
What is a speed wave?
Wave speed is
the distance a wave travels in a given amount of time
, such as the number of meters it travels per second. Wave speed is related to wavelength and wave frequency by the equation: Speed = Wavelength x Frequency.
What is the period of oscillatory motion?
Periodic motion is a repetitious oscillation. The time for one oscillation is
the period T
. The number of oscillations per unit time is the frequency f. These quantities are related by f=1T f = 1 T .
Is time a frequency?
Frequency is
a rate quantity
. Period is a time quantity. Frequency is the cycles/second. Period is the seconds/cycle.
What causes a standing wave?
Standing wave, also called stationary wave, combination of two waves moving in opposite directions, each having the same amplitude and frequency. The phenomenon is the result
of interference
; that is, when waves are superimposed, their energies are either added together or canceled out.
What is the source of all waves?
The source of all waves is
something that vibrates
. The energy transferred by a wave from a vibrating source to a receiver is carried by a disturbance in a medium.
What is the number of waves per second?
Wavelength is also measured in metres ( ) – it is a length after all. The
frequency
( ) of a wave is the number of waves passing a point in a certain time. We normally use a time of one second, so this gives frequency the unit hertz ( ), since one hertz is equal to one wave per second.
What is meant by the period of a pendulum group of answer choices?
The period of a pendulum is
the amount of time required for the pendulum to complete one full back-and-forth motion
– from its rightmost point back to its rightmost point again, for example. The time required to swing from its rightmost point to its leftmost point is half of a period.
What happens when a pendulum is shortened?
If a pendulum is shortened,
its period is reduced
. Therefore, the frequency increases.
What relationship exists between period and frequency?
Frequency, f, is how many cycles of an oscillation occur per second and is measured in cycles per second or hertz (Hz). The period of a wave, T, is the amount of time it takes a wave to vibrate one full cycle. These two terms are
inversely proportional to each
other: f = 1/T and T = 1/f.
