Solving the Matter in Our Surroundings Multiple Choice Questions of Class 9 Science Chapter 1 MCQ can be of extreme help as you will be aware of all the concepts. These MCQ Questions on Matter in Our Surroundings Class 9 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. Have a glance at the MCQ of Chapter 1 Science Class 9 and cross-check your answers during preparation.
Multiple Choice Questions
The mass per unit volume of a substance is:
Answer: (b) density
The melting point of ice is:
(a) 273.16 K
(b) 723.16 K
(c) 263.16 K
(d) 373 K
Answer: (a) 273.16 K
What is dry ice?
(a) Solid carbon dioxide
(b) Nitrogen oxide
(c) Carbon mono oxide
(d) None of them
Answer: (a) Solid carbon dioxide
Which of the following state is responsible for the glow in the sun and stars?
Answer: (c) Plasma
Which of the following phenomenon takes place when we add a drop of Dettol into the water?
(d) none of them
Answer: (b) diffusion
During summer, water kept in an earthen pot becomes cool because of the phenomenon of:
Answer: (d) evaporation
Which condition out of the following will increase the evaporation of water?
(a) Increase in temperature of the water
(b) Decrease in temperature of the water
(c) Less exposed surface area of water
(d) Adding common salt to the water
Answer: (a) Increase in temperature of the water
Fill in the Blanks.
Early Indian philosophers classified matter into _______ basic forms or elements.
The common unit of measuring volume is ________
With increase in temperature the kinetic energy of the particles _________
The rate of diffusion of liquids is _______ than that of solids.
To change a temperature on the Kelvin scale to the Celsius scale you have to subtract ________ from the given temperature.
______ is the amount of water vapour present in the air.
Gases are highly compressible as compared to solids and liquids.
Liquids have fixed volume and shape.
Compressed natural gas (CNG) is used as fuel these days in vehicles.
The state of matter cannot be changed by changing temperature or pressure.
The states of matter are inter-convertible.
In solids, the space between the particles is maximum.
Match the Column.
|1. Unit of temperature||(i) Kilogram (kg)|
|2. S.I. unit of mass||(ii) Kilogram per cubic metre|
|3. S.I. unit of pressure||(iii) Newton|
|4. Unit of weight||(iv) Kelvin|
|5. Unit of density||(v) Pascal|
|1. Unit of temperature||(iv) Kelvin|
|2. S.I. unit of mass||(i) Kilogram (kg)|
|3. S.I. unit of pressure||(v) Pascal|
|4. Unit of weight||(iii) Newton|
|5. Unit of density||(ii) Kilogram per cubic metre|
Answer in one Word/Sentence.
What is that process known as in which a solid is converted directly into the gaseous state without coming to a liquid state?
How many states of matter exist normally in nature?
Answer: Three states
What is that temperature called at which solid melts to become a liquid at the atmospheric pressure?
Answer: Melting point
What is the state of matter which has maximum compressibility?
Answer: Gaseous state