Question

Questions -
1. Which of the following are
matter?
Chair, air, love, smell, hate,
almonds, thought, cold, lemon
water, smell of perfume.
2. Give reasons for the following
observation:
The smell of hot sizzling food
reaches you several metres
away, but to get the smell from
cold food you have to go close.
3. A diver is able to cut through
water in a swimming pool. Which
property of matter does this
observation show?
4. What are the characteristics of
the particles of matter?


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Answer 1

Answer:

pls mark brainliest

Explanation:

Question 1. Which of the following are matter?

Chair, air, love, smell, hate, almonds, thought, cold, cold-drink, smell of perfume.

Answer: Chair, air, almonds, and cold-drink.

Question 2. Give reasons for the following observation:

The smell of hot sizzling food reaches you several meters away, but to get the smell from cold food you have to go close.

Answer: The smell of hot sizzling food reaches severed meters away, as the particles of hot food have more kinetic energy and hence the rate of diffusion is more than the particles of cold food.

Question 3. A diver is able to cut through water in a swimming pool. Which property of matter does this observation show?

Answer: A diver is able to cut through water in a swimming pool. This shows that the particles of water have intermolecular space and has less force of attraction.

Question 4. What are the characteristics of the particles of matter?

Answer. The characteristics of the particles of matter are:

(1) Particles have intermolecular space.

(2) Particles have intermolecular force.

(3) Particles of matter are moving continuously.

Answer 2

Answer:

Hey mate here is your answer Plz plz mark me brainlest

Explanation:

Solution 1 :

The following substances are matter:

Chair

Air

Almonds

Lemon water.

Solution 2 :

Particles in the air, if fueled with higher temperatures, acquire high kinetic energy which aids them

to move fast over a stretch. Hence the smell of hot sizzling food reaches a person even at a distance

of several meters.

Solution 3:

The diver is able to easily cut through the water in the swimming pool because of the weak forces of

attraction between water molecules. It is this property of water that attributes to easy diving.

Solution 4 :

The characteristics of particles of matter are:

(a) Presence of intermolecular spaces between particles

(b) Particles are in constant motion

(c) They attract each other