Physics 5054 · O Level
States of matter
20 practice questions on States of matter, with worked solutions and instant marking.
At $20\,^\circ\text{C}$, which substance in the table is in the liquid state?
May/June 2015
At $20^{\circ}\text{C}$, which substance in the table is in the liquid state?
May/June 2015
A material is made of particles that are packed closely together and move at random by sliding past one another. The particles’ average speed is increasing gradually. Which description best fits the material?
May/June 2017
A substance is made up of particles that are packed close together and move randomly past one another. The particles’ average speed is increasing steadily. Which description best fits the substance?
May/June 2017
Which statement correctly describes particles in a liquid?
May/June 2019
Which statement about water is true?
May/June 2021
Which row states the shape of a liquid and how its molecules are arranged?
May/June 2021
Which row shows the shape and volume of a liquid at a fixed temperature?
May/June 2023
Which property is shared by both liquids and gases?
May/June 2023
In which example do the particles stay in fixed positions?
May/June 2024
Which statement correctly describes a liquid?
May/June 2024
The diagram illustrates four state changes, W, X, Y and Z. Which row correctly names these four changes of state?
May/June 2025
The diagram illustrates four changes of state W, X, Y and Z. Which row states the names of these four changes of state?
Oct/Nov 2018
A substance melts at $-17\,^{\circ}\text{C}$ and boils at $117\,^{\circ}\text{C}$. What state is the substance in at $-10\,^{\circ}\text{C}$ and at $110\,^{\circ}\text{C}$?
Oct/Nov 2020
A substance melts at $-17^\circ\text{C}$ and boils at $117^\circ\text{C}$. What state is the substance in at $-10^\circ\text{C}$ and at $110^\circ\text{C}$?
Oct/Nov 2020
Which statement about a liquid is correct?
Oct/Nov 2020
Which diagram labels the changes of state that match the directions in which the arrows point?
Oct/Nov 2023
The table gives the melting and boiling temperatures for three elements (argon, nitrogen and oxygen). At which temperature are the three elements in different states?
Oct/Nov 2024
A student warms a substance whose particles are arranged in fixed positions and only vibrate. After heating for a brief time, the particles begin to move past one another, although the forces between them are still strong. What change has occurred in the substance?
Oct/Nov 2025
A student is comparing the properties of the three states of matter. One state has a partially completed table in the student’s notebook, as shown. Which words should complete the table?
Oct/Nov 2025