1.
Sound travels best through ___________________.
Correct Answer
C. Solids
Explanation
Sound travels best through solids because the particles in solids are closely packed together, allowing sound waves to pass through easily. In solids, the particles can transmit vibrations more efficiently compared to liquids and gasses, where the particles are more spread apart. This is why we can often hear sounds louder and clearer when they are transmitted through solid materials.
2.
Sound moves in ____________________ directions.
Correct Answer
B. All
Explanation
Sound moves in all directions because it is a mechanical wave that requires a medium to travel through. When a sound wave is produced, it radiates outwards in a spherical pattern, spreading in all directions from the source. This means that sound can travel in any direction, including upwards, downwards, sideways, and diagonally. The movement of sound in all directions allows it to be heard from various angles and distances, making it possible for us to perceive and locate the source of the sound.
3.
__________________ is the highness or lowness of a sound.
Correct Answer
C. Pitch
Explanation
Pitch refers to the highness or lowness of a sound. It is determined by the frequency of the sound waves, with higher frequencies producing higher pitches and lower frequencies producing lower pitches. Volume, on the other hand, refers to the loudness or softness of a sound. Tension is not directly related to the highness or lowness of a sound. Therefore, the correct answer is pitch.
4.
A movement back and forth that produces sound is called _________________.
Correct Answer
A. Vibration
Explanation
A movement back and forth that produces sound is called vibration. When an object vibrates, it creates a disturbance in the surrounding medium, such as air or water, which in turn creates sound waves. These sound waves travel through the medium and can be detected by our ears, allowing us to perceive sound. Therefore, vibration is the correct answer as it accurately describes the process of producing sound through a back and forth movement.
5.
__________________ is an organized pattern of sound.
Correct Answer
B. Rhythm
Explanation
Rhythm is an organized pattern of sound that creates a sense of movement and flow. It refers to the arrangement of stressed and unstressed syllables, beats, or musical notes in a piece of music or poetry. Rhythm provides a structure and helps to establish the tempo and pace of a composition. It can be found in various art forms, such as music, dance, and poetry, and is essential in creating a cohesive and harmonious experience for the audience.
6.
The speed of the vibration is called ___________________.
Correct Answer
C. Frequency
Explanation
Frequency refers to the speed at which a vibration occurs. It is a measure of how many times a vibrating object completes a full cycle of motion in a given time period. Therefore, frequency is the correct term to describe the speed of the vibration. Pitch refers to the perceived frequency of a sound, rhythm refers to the pattern of beats in a piece of music, and "none of the above" is not a suitable answer in this context.
7.
The amount of force placed on an object that affects how tight or loose it is is called __________________.
Correct Answer
A. Tension
Explanation
Tension refers to the amount of force applied to an object, which determines how tight or loose it is. It is the correct answer because tension directly affects the state of an object and its level of tightness or looseness. Speed and energy are not directly related to the force placed on an object, so they are not the correct answers.
8.
The loudness or softness of a sound is _________________.
Correct Answer
B. Volume
Explanation
The loudness or softness of a sound is determined by its volume. Volume refers to the amplitude or intensity of a sound wave. A higher volume indicates a louder sound, while a lower volume indicates a softer sound. Pitch, on the other hand, refers to the frequency of a sound wave and is unrelated to the loudness or softness of the sound. Therefore, the correct answer is volume.
9.
What is the highness or lowness of a sound called?
Correct Answer
C. Pitch
Explanation
Pitch refers to the highness or lowness of a sound. It is determined by the frequency of the sound wave, where a higher frequency corresponds to a higher pitch and a lower frequency corresponds to a lower pitch. Therefore, pitch is the correct answer as it accurately describes the term for a high or low sound.
10.
The measure of how loud or soft a sound is ... (quantified in units called decibels)
Correct Answer
D. Amplitude
Explanation
Amplitude is the correct answer because it refers to the measure of how loud or soft a sound is. It is measured in units known as decibels. The volume of a sound is determined by the amplitude of the sound waves, with higher amplitudes resulting in louder sounds and lower amplitudes resulting in softer sounds.