Complete the blanks using $4$ words from the list at the bottom. Correct spelling is critical. The text is taken from the Theory.

Remember that head is defined as energy per unit of fluid.

The head is the sum of the HEADPE and $HEA{D}_{KE}.$

Head due to kinetic energy $(m)$ : this is head due to the $$ of the

water. This will be calculated rather than measured during the experiment, but you can think of it as how high the water would rise if it were suddenly stopped by a wall.

Head due to potential energy $(m)$ : For an open channel section, this is $y,$ the

$$ of the water, and $y=R_{\text{b}\text{e}\text{d}}-R_{\text{s}\text{u}\text{r}\text{f}\text{a}\text{c}\text{e}}.$

volume two four sixteen specific motion width temperature depth friction independent length difference weight