Characteristics of Particles of Matter
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Comment on the following properties: (A) Rigidity (B) Compressibility (C) Fluidity (D) Filling a gas container (E) Shape (F) Kinetic energy and (G) density
Define matter?
What are the characteristics of the particles of matter?
Give reason for the following observations.
b. We can get the smell of perfume sitting several metres away.
Matter is made up of particles. Explain
Is matter continuous or particulate? Explain with examples
(a) Define matter. Give four examples of matter.
(b) What are the characteristics of matter?
5. Why do liquid take the shape of container in which they are placed but not solids
Give reason: A solid does not fill its container completely.
A substance has a definite volume but no definite shape. Identify the substance as solid, liquid or gas
Which one of the following statements is not true ?
(a) the molecules in a solid vibrate about a fixed position
(b) the molecules in a liquid are arranged in a regular pattern
(c) the molecules in a gas exert negligibly small forces on each other, except during collisions
(d) the molecules of a gas occupy all the space avilable
Anything that has weight and occupies space is called____________.
Why are we able to sip hot tea or milk faster from a saucer rather than a cup?
Define gaseous state of a substance?
What is meant by particulate nature of matter ? List four characteristics of particle nature of matter.
Which of the following is NOT a property of particles of a matter?
The particles of matter are extremely small
The particles of matter have spaces between them.
The particles of matter are in stationary state.
The particles of matter attract each other
With respect to the given assertion and reason, Choose the correct option.
Assertion [A]: With an increase in the temperature of a gas inside a container, its pressure also increases.
Reason [R]: Upon heating, the kinetic energy of the gas particles increases, which in turn results in a greater force exerted on the walls of the container.
(1) and (2) are true and (2) explains (1).
(1) and (2) are true but (2) does not explain (1).
Only (1) is true .
Only (2) is true.
The amount of space occupied by matter is called its
(a) Shape
(b) Size
(c) Mass
(d) Volume
A gas has no free surface.
- True
- False
The smell of hot sizzling food reaches you several meters away, but to get the smell from cold food you have to go close. Why?
[2 Mark]
Paper can easily change its shape on folding it and it can easily be torn still it is called a solid
What is meant by a substance?
Which of the following statement is incorrect ?
(a) the particles of matter are very, very small
(b) the particles of matter attract one another
(c) the particles of some of the matter are moving constantly
(d) the particles of all the matter have spaes between them
What are intermolecular forces ? How are these related to the three state of matter?
There are three states of matter. The state A has a fixed volume but no fixed shape. The state B can be compressed very easily and state C has a fixed shape as well as a fixed volume.
- Name the physical states (i) A (ii) B and (iii) C
- Name one substance belonging to state C which can directly change into vapours on heating. What is this process known as ?
- Name the most common substance belonging to state A that exist in nature in all three states.
- Give examples of some substances belonging to state B.
