Terminologies
vibration that travels through air that can be heard when they reach a person's/animal's ear is called
sound
types of waves
Transverse waves, longitudinal waves, surface waves.
how do you find the velocity/speed?
wavelength x frequency
what is pendulum?
a weight hung from a fixed point so that it could swing freely (forward and backwards)
give at least 5 examples of waves in real life
Microwaves, X-ray, Radio waves, Ultraviolet waves, tsunami waves
Something that is repeated over a period of time is called..
Frequency
Movement that includes swaying motion while remaining to 1 point is called..
wave
how do you find frequency in wave
velocity divided by wavelength
The formula of period
T= 2đťťż l9
Radio, TV, Handphone, Microwave are the examples of..
electromagnetic wave
maximum extent of vibration that is measured from equilibrium position is called..
amplitude
What are the differences between longitudinal wave and transverse waves?
longitudinal wave goes in the same direction as the wave while transverse wave moves perpendicular to the wave's direction.
A sound wave has a wavelength of 19 m and a frequency of 4 hz. Find its velocity
76 m/s
Measure the length of string with the 100 cm ruler and cut it with a scissor
Then tie and tape the end of the string onto the edge of the statis
Next, tie the other end of the string with a mass
Proceed to do the experiment by swinging the mass (by raising it then release it)
Continue the experiment 3-5 times with different strings to determined the period and frequency of each strings
Tsunamis are a mixture of both __ waves and ___ waves
transverse waves, and longitudinal waves
A repetitive movements back and forth through an equilibrium, or central position is called..
harmonic motion
Give atleast 3 examples of longitudinal waves and transverse waves.
longitudinal: tsunami waves, primary waves of an earthquake, ultrasound
transverse waves: ocean waves, electromagnetic waves, the ripples on the surface of the water.
If the wave is traveling at 924 m/s and has a frequency of 84 Hz, what is the wavelength of a sound wave?
11 m
How can the length of string affect the period?
if the string is longer, it will longer the pendulum’s period which means that we need a shorter string to make the pendulum’s period faster. A shorter string will also increase the number of frequencies which is why shorter strings have less period.
Is there a longitudinal wave in a tsunami? how?
yes, A transverse wave and a longitudinal wave, respectively, are both examples of a tsunami. The waves become thinner and smaller as they approach the shore, and the water molecules move parallel to the wave, forming longitudinal waves.
The changes in frequency of any kind of sound/light wave produce by a moving source with respect to an observer is called..
doppler affect
What are the parts of the wave diagram?
wave crest, wave length, wave frequency, amplitude, wave through, wave height
Find the frequency of a wave with velocity of 2 x 55 m/s and wave length 23 m
4,782 hZ
give 5 examples of a pendulum in real life
A playground swing, Clock, Amusement park rides, wrecking ball, diving board
How does an Xray work and what kind of wave does it have?
After the x-rays have passed through, the other side of your body will pick them up and turn them into an image. As an electromagnetic radiation whose electric and magnetic fields propagate perpendicular to one another, X-rays are one example of a transverse wave.