Waves Flashcards
The disturbance that propagates energy down through matter is called a _________________.
wave
How is the height of a wave different than the amplitude of a wave?
The amplitude is from the rest position to the crest or trough, and height is from trough to crest.
How is a pulse different from a periodic wave?
A pulse is only one wave, where periodic waves are many repeated waves.
The number of waves that pass by a point per second is known as _______________________.
frequency
How can you easily convert the frequency of a wave into the period of a wave?
Place the frequency amount on the bottom of a fraction and place a 1 on top.
When you measure the distance a particle moves from the rest position, back and forth, and return to the rest position, this is called a ____________ (or cycle).
period
Which has a greater effect on energy, doubling the amplitude or doubling the frequency of a wave?
Increasing the amplitude quadruples the energy of the wave.
If you increase your amplitude of a wave 5 times (five times taller), how does this affect the energy the wave has?
. 5² x 2 = 50 Units
If a wave has a frequency of 6 hertz, what is the period of a particle in that wave?
1/6th of a second
Doubling the frequency of a wave ________ the energy of the wave.
. doubles
Doubling the amplitude of a wave _________ the energy of the wave.
quadruples
Changing the frequency of a sound wave causes what to happen?
Changes how high or low the pitch sounds.
What frequency range are most humans able to hear?
20-20,000Hz
Either increasing the number of waves per second or increasing the height of waves from the rest position results in ___________________.
an increase in energy moving down the wave.
If there is no energy or disturbance in a medium (material), what will you see?
No Waves
