WorksheetsMatter in our surroundins - 01
Total questions: 20
Worksheet time: 10mins
The arrangement of constituent particles is most ordered in
Solid state
liquid state
gaseous state
all of these
Which of the following is not a characteristic of matter?
Matter is made up of extremely small particles
There is no space between particles of matter
The particles of matter are continuously moving
The particles of matter attract each other.
Seema took a 100 ml beaker and filled half the beaker with water and marked the level of water. She dissolved some salt with the help of a glass rod and recorded water level again.
The water level increases appreciably
The water level decreases
The water level remains the same
There is little increase in water level.
Shivam visited an LPG unit and found that the gas can be liquified at specific conditions of temperature and pressure. Help him to identify the correct set of conditions.
High temperature and high pressure.
Low temperature and low pressure.
Low temperature and high pressure.
High temperature and low pressure.
During summer, water kept in earthen pot becomes cool due to phenomenon of
Diffusion
Transpiration
Distillation
Evaporation
Which of the following is correct order of forces of attraction?
Water > Air > Sand
Air > Sugar > Oil
Air < Water < Sugar
Salt > Air > Juice
Which of the following will produce severe burns ?
Cold water
Hot water
Boiling water
Steam
Which of the following conditions will increase the rate of evaporation?
Increase in temperature of water
Decrease in wind speed
Decrease in surface area of water
Adding sugar to water
Which of the following is incorrect?
Solids have fixed shape and fixed volume.
Liquids have fixed volume but not shape
Gases have neither fixed shape nor volume
The particles have least intermolecular space but maximum kinetic energy in liquids.
Ice floats on water because
it has higher density than water
it has lower density than water due to more volume
it is solid
it is low melting solid
The physical state of a matter depends upon
temperature and pressure
temperature only
pressure only
nature of substance
The boiling point of water at higher altitude is
373 K
< 373 K
> 373 K
273 K
Latent heat of fusion is amount of
heat energy required to change 1 kg solid into liquid completely at its melting point.
heat energy required to convert 1 kg solid into liquid at room temperature
heat energy required to change 1 g of solid into liquid completely
heat energy required to change 1 kg of solid into liquid at any temperature.
The temperature at which vapour pressure of liquid becomes equal to atmospheric pressure is called
melting point
boiling point.
ignition temperature
sublimation temperature.
In which form, do the water molecules have less kinetic
energy?
(a) Ice
(b) Water
(c) Steam
(d) All of them have equal kinetic energy
Which of the following describes the liquid phase?
(a) It has a definite shape and a definite volume.
(b) It has a definite shape but not definite volume.
(c) It has a definite volume but not a definite shape.
(d) It has neither a definite shape nor a definite
volume.
The process of evaporation causes:
(a) heating
(b) cooling
(c) increase in temperature
(d) none of these
Which of the following is not correct regarding gases?
(a) Gases exert pressure.
(b) Gases have large intermolecular spaces.
(c) Gases have weak tendency to diffuse.
(d) Gases have weak intermolecular forces of
attraction.
The evaporation of a liquid can be best carried out
in a
(a) beaker
(b) China dish
(c) test tube
(d) flask
Which of the following has highest kinetic energy?
(a) Particles of ice at 0 degree C
(b) Particles of water at 0 degree C
(c) Particles of water at 100 degree C
(d) Particles of steam at 100 degree C
