Test Your Knowledge About Waves And Wave Motion!

Explanation
We can solve for wavelength (λ), commonly expressed in meters, by plugging known values for speed (v = 10) and frequency (f = 100) into the following equation: v = λ(f), which can be expressed as λ =v/f. Therefore, λ = 10/100, or λ = 1/10 = 0.1 meters.

Explanation
Correct! Hertz (Hz) measures cycles per second, so a wave with a frequency of 1000 Hz completes 1000 cycles every second. The period of a wave is the number of seconds it takes for the wave to complete one cycle. Therefore, the period of this wave is one thousandth of a second, or 0.001 seconds.

Explanation
Correct! In a longitudinal wave, the individual particles (air molecules) vibrate back and forth in the direction that the sound is traveling. The particles bunch together and then spread out while moving in a direction that is parallel to the direction of the wave.

Explanation
Correct! Sound waves are examples of longitudinal waves, where the individual particles (air molecules) vibrate back and forth in the direction that the sound is traveling.

Explanation
The time taken to complete a wave is referred to as the period. This term is commonly used in physics and describes the duration it takes for one complete cycle of a wave to occur. It is measured in units of time, such as seconds or milliseconds. The period is an important parameter in wave analysis and is used to calculate other properties of waves, such as frequency and wavelength.

Explanation
The distance between any two shortest points in a wave that is in phase is called the wavelength. Wavelength is a fundamental property of waves and is defined as the distance between two consecutive points in a wave that are in the same phase. It is usually represented by the symbol λ (lambda) and is commonly measured in meters. Wavelength determines the characteristics of a wave, such as its frequency and energy.

Explanation
Periodic motion refers to any motion that repeats itself at regular intervals. This can include various types of motion such as the swinging of a pendulum, the oscillation of a spring, or the rotation of a wheel. In periodic motion, the object or system returns to its original position after a fixed amount of time, creating a predictable pattern. Vibration and oscillation are specific examples of periodic motion, while ventilation is unrelated to the concept.

Explanation
Wave motion in a medium transfers energy only. Waves are disturbances that travel through a medium, causing particles in the medium to oscillate. As the wave propagates, it transfers energy from one point to another without transferring mass. This is evident in various types of waves, such as sound waves, light waves, and water waves. These waves carry energy from their source to the surrounding environment, but they do not transport any physical mass along with them.

Explanation
As the frequency of a wave increases, the period of that wave decreases. This is because frequency and period are inversely proportional to each other. Frequency refers to the number of complete cycles of a wave that occur in one second, while period refers to the time it takes for one complete cycle of a wave. As the frequency increases, the number of cycles occurring in one second increases, which means the time for each cycle, or the period, decreases.

Explanation
The correct answer is frequency. When an opera singer's voice matches the natural frequency of a thin crystal glass, it causes the glass to vibrate at a high amplitude. This excessive vibration can lead to the glass shattering. The frequency of a sound wave determines its pitch, so when the singer's voice frequency matches the glass's natural frequency, it creates resonance and causes the glass to break.