Hydrostatics

The Relative density of a substance is the ratio of the density of the substance to the density of ......

• oil

• itself

• Water

p (roe) is the symbol for

(a)  

The formula for the Weight of an object is . . .

• density of substance /

  density of water

• V P g

  Vol x density x g

Thrust is defined as Pressure X ____

• Density

• Area

• force

• relative density

The density of water is kg/m sq

• 1

• 10

• 100

• 1000

What is the volume of a cube with a side of 2m

• 4 m³

• 16 m³

• 8 m³

• 10 m³

 Jack has a rock. The rock has a mass of 14 g and a volume of 2 cm³. What is the density of the rock?

• 1/7 g/cm³

• 28 g/cm³

• 7 mL

• 7 g/cm³

A cube is completely filled with water.

It has a side of length 2m.

What is the weight of water inside the cube?

• 8000 g Newtons

• 78,400 Newtons

• 9000 Newtons

• 16, 000 Newtons

A cube has a side of length 3m.

It is completely filled with water.

What is the pressure at a point on the base?

• 2000 Pa

• 29,400 Pa

• 3000g Pa

• 9000 Pa

A cube has a side of length 3m.

It is completely filled with water.

What is the thrust on the base?

• 72,000 N

• 27000 g Newtons

• 284,200 Newtons

• 30,000 N