Question

name:kyla lygo science
wireless speaker lesson 1 quiz
use the words below to complete the sentences.
absorb amplitude analog signal atom brightness
sound pitch waves wavelength volume
frequency speed cycles hertz cm to m
amplitude m to cm amplifier

1. the distance from the rest position (middle line) to the crest or to the trough is
2. sound ____ are longitudinal waves that can only travel through matte
3. quantity or power of sound; degree of loudness is
4. an attribute of visual perception in which a source appears to be radiating or reflecting light is called
5. the quality of a sound vibrations; the degree of highness or lowness of a tone is
6. frequency times wavelength equals
7. ____ is to take in matter or energy.
8. the height or “strength” of a wave is called its
9. the smallest unit of an element that has the properties of that element is
10. ____ is a vibration that is a rapid, back and forth motion that occur in solids, liquids, or gases
11. the distance between successive crests of a wave is called its
12. multiply the length value by 100 to convert
13. divide the length value by 100 to convert
14. a continuous signal with small but meaningful fluctuations that communicate information is called
15. the rate at which something repeats or occurs; such as the number of waves per second in physics. events that are regularly repeated in the same order is a ____.

Explanation:

1. The distance from the rest - position to the crest or trough is amplitude.
2. Sound waves are longitudinal waves that travel through matter.
3. The quantity or power of sound (loudness) is volume.
4. The attribute of visual perception related to light is brightness.
5. The highness or lowness of a sound tone is pitch.
6. Frequency times wavelength equals speed (from the wave - speed formula $v = f\lambda$).
7. To take in matter or energy is to absorb.
8. The height or “strength” of a wave is amplitude.
9. The smallest unit of an element with its properties is an atom.
10. A vibration in solids, liquids or gases is sound.
11. The distance between successive crests of a wave is wavelength.
12. Multiply length value by 100 to convert m to cm.
13. A continuous signal with meaningful fluctuations is an analog signal.
14. The rate of repetition in physics (number of waves per second) is frequency.

Answer:

1. Amplitude
2. Waves
3. Volume
4. Brightness
5. Pitch
6. Speed
7. Absorb
8. Amplitude
9. Atom
10. Sound
11. Wavelength
12. M to cm
13. Analog Signal
14. Frequency