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Explain the different types of wave.

There are two different types of wave: longitudinal and transverse. When you hear the word "wave" you are probably thinking of a transverse wave.

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Answered by Harry C. • Physics tutor

3677 Views

A pendulum has a frequency of 0.80 Hz, calculate the periodic time of the pendulum.

You need to use the equation that relates frequency and period; period = 1/frequency

Then all you need to do is plug in the frequency to get the periodic time:

Answered by Mia V. • Physics tutor

16228 Views

What determines the acoustic impedance of a material and why is it useful in understanding ultrasound imaging?

Acoustic impedance is the density of a material multiplied by the speed of sound in the material.
Knowing these two values allows use to calculate how much of th...

Answered by David A. • Physics tutor

8818 Views

How is a piezoelectric crystal used to generate waves of ultrasound?

A piezoelectric crystal makes use of the peizoelectric effect. This is the production of a voltage when mechanical stress is applied across the material. This occurs only in materials ...

Answered by David A. • Physics tutor

10183 Views

What is the Doppler Effect?

The Doppler Effect is the strectching and compressing of waves caused by the movement of the source. Put more simply, when an object emits a sound - say a van beeping its horn it produces a sound of a ...

Answered by Sebastian J. • Physics tutor

7372 Views