Question 27
Density and pressure are linked through the behaviour of particles. You have learnt in Stage 8 that pressure is caused by particles colliding with one another and with the container walls. Density is influenced by the number of particles packed in a given volume. Complete the paragraph below using suitable words to describe the relationship between density and pressure.
When the density of a liquid or gas in a container ______, there are ______ particles colliding with the container walls per unit area. This results in ______ pressure. A ______ density means ______ particle collisions and therefore ______ pressure.
When the density of a liquid or gas in a container ______, there are ______ particles colliding with the container walls per unit area. This results in ______ pressure. A ______ density means ______ particle collisions and therefore ______ pressure.
