6035 | Scientific Principles | LO3

Velocity is measured in:

• m/s

• N

• Pa

• l/s

Acceleration is measure as m/s², but what is the measurement due to gravitational pull?

• 101.3 m/s²

• 58.5 m/s²

• 19.9 m/s²

• 9.81 m/s²

A force acting over a smaller area will create more pressure, how is this measured?

• Pressure x area = force

• Area ÷ pressure = Force

• Area ÷ force = pressure

• Force ÷ area = pressure

Statement: Static pressure, stationary water, and dynamic pressure, flowing water are both measured in the same way. Head height x gravity.

• True

• False

The intensity of pressure is worked out by:

• Dividing the gravitational pull from the head height.

• Dividing the head height from the gravitational pull.

• Multiplying the head height with the gravitational pull.

If the Intensity of Pressure was 88.29N/m², what is the head height?

(Gravity is 9.81kN/m²)

• 5m

• 7.5m

• 9m

• 11m

1.5 bar is the equivalent of 150 Kilopascals. How much head height would this equate to?

• 1.5 metres

• 15 metres

• 150 metres

• 1500 metres

At sea level, the atmospheric pressure is measured at 101.3kPa. If you were to submerge to the lowest point of the ocean:

• The atmospheric pressure would be the same as sea level.

• The atmospheric pressure would be higher than sea level.

• The atmospheric pressure would be lower than sea level.

The process that is happening in the image shown here is:

• Atmospheric siphonage

• Siphonic action

• Capillary action

• Intensity of Pressure

On the diagram shown, the distance from the CWSC to point A is 10.0 metres giving approximately 1 bar pressure. Giving this, approximately how far from the CWSC is point B?

• 2cm

• 200mm

• 2 metres

• 20cm