Question

1. Which of the following mixtures will be the most difficult to separate?

Group of answer choices

Nitrogen + hydrogen

Sand + water

Iron filings (powder) + sand

Sawdust + stones

2. The kinetic energy of molecules is directly proportional to

Group of answer choices

Atmospheric pressure

Mass

Pressure

Temperature

3. Which of the following represent the densest state of matter?

Group of answer choices

Solids


Vapours

Gases

Liquids

4. Particles of matter have _______________________ between them

Group of answer choices

Space

Nothing

Mass

Friction


5. When particles move in straight lines, changing direction without loss of energy on colliding with another particle or the wall of the container, the motion is called _________

Group of answer choices

Random Motion

Translatory motion

Rotational Motion

Vibrational Motion


6.Translatory motion is maximum in _________ and the least in ___________ when compared to liquids.

Group of answer choices

a. Plasma, Solids

b. Gases, Plasma

c. Gases, Solids

d. Solids, Gases


7. Solids have least inter atomic spacing

True

False



8. Particles of matter have an attractive force between them to keep them together.

Group of answer choices

True

False

9. At lower temperature diffusion rate (movement) of particles is very fast.

Group of answer choices

True

False

10. Write a short note on " Characteristics of particles of matter "

Answer 1

Answer:

don't come in my syllabus yet