What is amplitude?Select an answerAThe number of complete vibrations per secondBThe distance between two consecutive crests or troughs of a waveCThe maximum displacement of a vibrating object from its equilibrium positionDThe time taken to complete one cycle of vibration

What is frequency?Select an answerAThe maximum displacement of a vibrating object from its equilibrium positionBThe time taken to complete one cycle of vibrationCThe number of complete vibrations per secondDThe distance between two consecutive crests or troughs of a wave

What is time period?Select an answerAThe distance between two consecutive crests or troughs of a waveBThe maximum displacement of a vibrating object from its equilibrium positionCThe time taken to complete one cycle of vibrationDThe number of complete vibrations per second

What is amplitude?

1Which of the following is NOT equal to the wavelength of a wave?The distance from the trough of one wave to the trough beside itThe distance from a point on one wave to the equivalent point on the wave beside itThe frequency of the wave (in Hz) divided by its speed (in m/s)The distance from the peak of one wave to the peak beside it2What is meant by the amplitude of a wave?The number of waves passing a point per secondThe distance from a point on one wave to the equivalent point on the wave beside itThe maximum displacement of a point on a wave from its undisturbed positionThe time taken for one complete wave to pass a point3What is meant by the frequency of a wave?The number of waves that pass a point per secondHow often a wave passes a pointThe total number of waves produced by a sourceThe number of seconds it takes for one complete wave to pass a point4A pianist plays a note which has a frequency of 440 Hz.  Calculate the wavelength of this sound wave produced by the piano if the speed of sound in air is approximately 330 m/s.0.75 m1.33 m (2 d.p.)145,200 m110 m5A wave of wavelength 10 m is travelling at a speed of 100 m/s.  Calculate the period of this wave.0.1 seconds10 seconds1,000 seconds1 second6Brian uses a starter pistol to mark the start of a 100 m sprint.  The sound wave produced by the pistol reflects from a nearby wall, and he hears the echo of the shot 600 ms (milliseconds) after the pistol was fired.  Calculate how far the wall was from Brian.  The speed of sound in air is approximately 330 m/s.99 m198 m1,980 m990 m7A sound wave travels from air into water.  In air, the sound wave travels at a speed of 340 m/s and has a wavelength of 20 m, and in water, it travels at a speed of 1500 m/s.  Calculate the wavelength of the sound wave in water.88.24 m25,500 m4.53 m0.01 m

Select the correct term which defines displacement?A 1AThe time it takes for one complete wave cycleBThe distance traveled by the wave in a given time periodCThe maximum height or distance a point on the wave deviates from the midline.DThe number of oscillations per unit time