Characteristics of Particles of Matter

Q. State the universal law of gravitation. The mass of the electron and proton in a Hydrogen atom is given by 9×10^-31 Kg and 1.9×10^-27 Kg respectively which is separated by a distance 6×10^-11m. Calculate the gravitational force of attraction between them? [3 MARKS]

Q.

Explain the properties of matter.

Q. Match the following with their units.

1. $m^2$
2. $Litre$
3. $m^3$

Q.

One day you and your friends were discussing about matter. He believes that matter is continuous like a block. Initially, you have also agreed with him but later one observation changed your perception about matter. Now you believe it is made up of discrete particles. The observation was

1. Evaporation of water

2. Complete dissolution of salt in water

3. Salt settles at the bottom of the glass.

4. Freezing of water

Q.

Which one of the following depicts characteristics of matter?

1. Matter has space in between them.

2. Matter does not have space in between them

3. Matter does not move

4. Matter is not particulate in nature

Q. The level of water in a beaker when a spoon full of sugar or salt is added to it.

1. remains same
2. increases
3. decreases

Q.

What is the characteristic of particles of matter?

Q.

Identify the characteristics of particles of matter from the given options:

1. Particles of matter have space between them

2. Particles of matter are in continuous motion

3. Particles of matter have fixed positions

4. Particles of matter attract each other

Q. Particles of matter do not have any space between them.

1. False
2. True

Q. As we increase the temperature, the kinetic energy of the particles increases.

1. False
2. True

Q.

Select the correct option that refers to the nature of matter.

1. Matter is continuous

2. Matter is particulate

3. Matter is neither particulate nor continuous

4. Matter is both particulate and continuous

Q. Which of the following is not matter?
(a) water
(b) air
(c) sound
(d) fruits

Q.

Identify the characteristics of particles of matter from the given options:

1. Particles of matter have space between them

2. Particles of matter are in continuous motion

3. Particles of matter have fixed positions

4. Particles of matter attract each other

Q. When we add salt to water, they get mixed properly because particles of salt get into the spaces between particles of the water.

1. False
2. True

Q. What are the conditions for ‘something’ to be called ‘matter’?

Q.

Define matter giving examples

Q. Define matter.