Particulate Nature of Matter Class 8 Short Question Answer

Particulate Nature of Matter Class 8 Short Question Answer

Particulate Nature of Matter Class 8 Short Question Answer

Question 1.

What happens to the particles of a solid when it is heated?

Answer:

When a solid is heated, its particles gain energy, vibrate more vigorously, and may eventually overcome their fixed positions, leading to a phase change into a liquid.

Question 2.

What is the effect of pressure on gas particles in a syringe?

Answer:

When pressure is applied to gas particles in a syringe, they are forced closer together, demonstrating that gases can be compressed due to the large spaces between their particles.

Question 3.

Why does water take the shape of its container?

Answer:

Water takes the shape of its container because its particles are not fixed in place and can move past each other, allowing the liquid to flow and adapt to the shape of the container.

Question 4.

How does the fragrance of a burning incense stick spread throughout a room?

Answer:

The fragrance of a burning incense stick spreads throughout a room as the particles of the fragrance move and collide with air particles, allowing them to disperse and fill the space.

Question 5.

What happens to the arrangement of particles when ice melts into water?

Answer:

When ice melts into water, the closely packed arrangement of particles in the solid state becomes less ordered as the particles gain energy and move more freely. This transition allows the particles to slide past each other, resulting in a liquid state with a definite volume but no fixed shape.

Question 6.

What is the primary difference between solids and liquids in terms of particle movement?

Answer:

The primary difference is that in solids, the particles are closely packed and can only vibrate in place, while in liquids, the particles are still close together but can move past each other, allowing liquids to flow and take the shape of their container.