In this post, let’s look at what’s tested for mass, weight and density in O Level Physics. I go through this in detail in my video here.

This is a relatively short chapter. There’s quite a number of definitions which you need to know, and 2 formulae (for weight and density) which you’ll need to apply for calculation questions.

Below is a checklist on what’s tested for mass, weight and density for you to use after you finish your revision on this chapter.

## Checklist for Mass, Weight and Density for O Level Physics

✓ define mass

✓ define inertia

✓ define gravitational field

✓ define gravitational field strength

✓ Apply the formula weight = mass x gravitational field strength ( W = mg )

✓ distinguish the differences between mass and weight

✓ Apply the formula density = mass/ volume

Our video on what’s tested on mass, weight and density for O Level Physics below: