L3 Scientific principles

The SI unit for temperature is?

• KG

• Metre

• Celsius

• Kelvin

Water has a relative density of?

• 0.5

• 1

• 1.5

• 2

What is the freezing point of water at sea level?

• 100 0C

• 75 0C

• 25 0C

• 0 0C.

With a downward pressure of 100kPa and a head of 10m, what would be the approximate pressure in bar?

• 100 bar

• 50 bar

• 10 bar

• 1 bar.

A change of state may occur when water is heated to:

• 25 0C

• 50 0C

• 75 0C

• 100 0C.

absolute zero is?

• -27 Celsius or 0 Kelvin

• -273 Celsius or 0 Kelvin

• -73 Celsius or 0 Kelvin

• -283 Celsius or 0 Kelvin

To calculate the volume of liquid you use?

• Length x width x height x 1000

• Length x width x height x 100

• Length x width x height x 10

• Length x width x 1000

Water is at it's most Dense at?

• 0

• 4

• 10

• 100

When water turns to steam it expands by?

• 160 times

• 1600 times

• 10%

• 4%

If gravity is the only force acting on an object, then the object will accelerate at a rate of?

• 10m/s2

• 9.81m/s2

• 9.8m/s2

• 9.81m/s3