Units (Solids, Liquids and Gases)

State the SI unit of pressure and explain what each part of the unit represents.

A glass block has a mass of 1.2 kg and a volume of 0.00048 m³. Calculate the density of the glass. Give your answer to two significant figures and include the correct unit.

Which of these units is NOT a correct SI unit for the quantities given?

Explain, using the idea of density and correct units, why a steel block sinks but a wooden block of the same size floats when placed in water.

A rectangular metal bar has a length of 0.20 m, a width of 0.06 m, and a height of 0.04 m. Its mass is 0.86 kg.

A diving suit is made with thicker material for deeper water. Explain using ideas of pressure and area, and state the correct unit for pressure, why this is important for safety.

Write the equation for calculating the density of a substance. Define all the symbols you use.

Convert a volume of 5000 cm³ to m³. Show your working using the correct unit conversion.

State the equation linking pressure, force, and area for pressure under a solid. Use standard symbols.

A wooden block of mass 5.0 kg rests on a flat table. The contact area between the block and the table is 0.20 m^2.