The equation $v=f\lambda$  is used to calculate the speed of a wave. Copy the table and complete it to show that each symbol represents and what their units are

symbol	Quantity	unit
$v$
$f$
$\lambda$

 

Look at the wave shown. The horizontal and vertical scales are in $\mathrm{cm}$.

What is its wavelength?

Look at the wave shown. The horizontal and vertical scales are in $\mathrm{cm}$.

What is its amplitude?

Look at the wave shown. The horizontal and vertical scales are in $\mathrm{cm}$

If this wave is moving at a speed of $10 \mathrm{cm} {\mathrm{s}}^{-1}$, what is its frequency?

Look at the wave shown. The horizontal and vertical scales are in cm.


On graph paper. With the same labelled and numbered axes as here, sketch a wave having half this amplitude and twice this wavelength.