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Integrated Physics and Chemistry Test: Waves

Terms in this set (29)

Identify the following as electromagnetic (E) or mechanical (M) waves.
sound waves -
water waves -
radio waves -
unltraviolet waves -
waves in a wheat field -
M
M
E
E
M
All waves consist of some sort of ____________ that transmits energy.
disturbance
The energy of an electromagnetic wave is related to =
- the wave's frequency
- the wavelength
What waves are capable of propagating without a medium?
electromagnetic waves
Which type of wave cannot travel through a vacuum?
sound waves
During wave motion, the motion of particles to one side of the rest position will be ________________ the motion to the other side of the rest position.
the same as
Which of the following graphs have the same wavelengths?
1 and 4
The period of a mechanical wave is 5 seconds. What is the frequency of the wave?
0.2 Hz
Assuming the input of energy continues for another 2.5 seconds, where will the particle be?
positive maximum
Which of the following mechanical waves has the most energy?
4
A wave travels down the length of a 25-meter rope in 5.0 seconds. The speed of the wave is __________
5.0 m/s
A certain wave has a wavelength of 35 meters and a frequency of 4.0 Hz. What is the speed of the wave?
140 m/s
According to the law of reflection =
1. when two waves meet, they reflect
2. when two waves meet, they interfere
3. when a wave meets a boundary, the angle of the refracted wave will be equal to the angle of the incident wave
4. when a wave meets a boundary, the angle of the reflected wave is equal to the angle of the incident wave
4, when a wave meets a boundary, the angle of the reflected wave is equal to the angle of the incident wave
Wave A has an amplitude of 2, and wave B has an amplitude of 2. What will happen when the crest of wave A meets the trough of wave B?
They will interfere to create a crest with an amplitude of 0.
There is no sound in the vacuum of space. Why?
- There is no air to vibrate the human eardrum.
- Sound must travel through something that vibrates.
How long would it take for a sound impulse to travel through a copper rod 25 kilometers long?
7.1 sec
Sound will travel fastest in air at ______
15*C
The apparent change in frequency perceived when the source of sound is approaching or moving away from an observer =
Doppler effect
A series of alternating reinforcements and cancellations produced by the interference of waves =
beats
The vibration of an object at its natural frequency, caused by a force or wave of the same frequency =
resonance
The cone-shaped wave made by a particle moving faster than the speed of a wave in that medium =
shock wave
A bumblebee buzzes past you at 3 m/s. The frequency of the hum made by its wings is 152 Hz. Assume the speed of sound to be 342 m/s. What is the observed frequency of the hum as the bumblebee approaches you?
153 Hz
An "F" tuning fork with a frequency of 349 Hz is used to test the "F" note of a piano. Three beats are heard. This means the piano key is =
1. in tune
2. out of tune and has a frequency of 352 Hz
3. out of tune and has a frequency of 346 Hz
4. out of tune and has a frequency of either 346 or 352 Hz
4, out of tune and has a frequency of either 346 or 352 Hz
If the fundamental frequency of a musical instrument is 22 Hz, what is the frequency of the second harmonic?
44 Hz
Nearly all light that strikes a(n) _____________ object will pass through it.
transparent
A object is placed in front of a convex mirror. The image that forms is =
virtual
White light is shining on a green grape. The grape =
reflects green light
A __________ lens is used in a magnifying glass.
convex
The object distance for a concave lens is 8.0 cm, and the image distance is 12.0 cm. The height of the object is 4.0 cm. What is the height of the image?
6.0 cm
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