Gas
They are physical changes.
All forms of matter have mass, which is a measure of the amount of matter in an object. Additionally, matter occupies space or has volume, meaning it takes up a certain amount of physical space.
The physical forms of matter are solid, liquid, gas, and plasma. Solids have a fixed shape and volume, liquids have a fixed volume but take the shape of their container, gases have neither a fixed shape nor volume, and plasmas are ionized gases with free-moving charged particles.
States of matter refer to the distinct physical forms in which matter can exist: solid, liquid, gas, and plasma. In each state, the particles of matter have different arrangements and energy levels, leading to distinct properties such as shape, volume, and compressibility. Changes in temperature and pressure can cause matter to transition between these states.
The three states of matter (solid, liquid, gas) are similar in that they are all forms of matter with mass and volume. They can also undergo physical changes, such as melting or freezing, without changing their chemical composition. Additionally, they are all made up of particles (atoms or molecules) that are constantly in motion.
Four forms of energy related to change in matter are thermal (heat) energy, chemical energy, nuclear energy, and electrical energy. These forms of energy can cause physical or chemical changes in matter by providing the necessary energy for these changes to occur.
Solids are the only forms of matter having definite shape and volume.
False. Matter, by definition, occupies space and has mass. All forms of matter have volume, which means they take up physical space.
Physical change
Solid matter occupies space because it has volume and shape, and its particles are packed closely together. Liquids and gases also occupy space, as they conform to the shape of their container and still have volume. Overall, all forms of matter have physical properties that allow them to take up space.
No, heat and light are forms of energy, not physical matter, so they do not occupy space in the way that physical objects do. They can be present in a space, but they do not have a fixed volume or mass like matter does.
Forms of energy related to changes in matter may include kinetic, potential, chemical, electromagnetic, electrical, and thermal energy.