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Worksheets9IMAUPMSMFLMG
Total questions: 50
Worksheet time: 50mins
The intermixing of particles of two diferent types of matter on their own is called_______
Diffusion
Compressibility
Compressibility is highest in_______
Solids
Liquids
Gases
None
_____have definite shape and fixed volume
Gases
Liquids
Solids
All
The phenomenon of change of liquid into vapors at any temperature below its boiling point is called______
Sublimation
evaporation
Fusion
Condensation
Can matter change its state?
Yes
No
Which of the following is matter?
Love
Hate
Smell
Air
Difference in various states of mater is due to the difference in the_______the constituent particles
distance between
size of
type of
none
Expand LPG or CNG (a)
Ice starts melting at 0O c and water boils at (a)
A change of state directly from solid to gas without change in liquid state is called sublimation. Which of these show it___
Ammonia
Ammonium chloride
Chlorine
All
____________contains more than one pure substance
Gold
Iron
Sulphur
mixture
A solution has______
solute
solvent
Both
none
A solution contains 50g of common salt in 200g of water. Calculate the concentration in terms of mass by mass percentage of the solution?
(a)
Write one factor that affects the solubility of a solute in a solvent?
(a)
Particles of chalk do not dissolve in water but remain suspended in the volume of water. Such heterogenous mixture is called_____
suspension
emulsion
colloid
none
Particles in a colloid solution can easily scatter a beam of visible light. This scattering of beam of light is called (a)
For seperating cream from milk, to test blood & urine samples in laboratory (a) is used
Seperation of two miscible liquids like acetone and water is done by_________process
distillation
fractional distillation
separating funnel
All of the above
We can separate two or more miscible liquids when the difference in their boiling points is less than 25K, by ______process
Distillation
Fractional distillation
_______cannot be broken down to further simpler substances.
Compounds
elements
Distance time graph of an object moving with uniform speed is a __________
straight line
curved line
Velocity time graph for uniform motion of a car is_________
straight line parallel to x-axis
straight line parallel to y-axis
The area under velocity time graph gives_____
distance
velocity
acceleration
time
Which has the greater acceleration, an airplane, that goes from 1000Km/hr to 1005 Km/hr in 10 s or a skateboard that goes from zero to 5Km/hr in 1 second?
skateboard
airplane
Identify the scalar quantity?
distance
Force
velocity
acceleration
A man used his car. The initial and final odometer readings are 4849 and 5549 respectively. The journey time is 70 hours. What is the average speed of the car during the journey?
49000Km/hr
10 Km/hr
A racing car has a uniform acceleration of 4 m/s2 . What distance it will cover in 10 seconds after start?
200 meters
400 meters
90 metres
100meters
An athlete completes one round of circular track of diameter 840 meters in 1 minutes. what is his speed____(assuming it to be uniform for the entire journey)
44 m/s
840 m/s
One example of non uniform motion is _______
Travelling in a busy traffic road
Moving in a circular path at constant speed
Both
None
Speed with direction is called as______
Distance
Velocity
Observing, rolling a ball on inclined planes with smooth surfaces experiment was done by________
Galileo Galilee
Sir Issac Newton
Fast puling of paper with a coin placed over it falls in a tumbler. This is an example of______
Inertia
Newtons third law
The rate of change of momentum of an object is proportional to the applied unbalanced force in the direction of the force. This is ______
Newtons second law of motion
Keplers law
Avogadros law
Newtons first law of motion
Newtons third law of motion
What force is required to produce an acceleration of 3 m/s2 in an object of mass 0.7 Kg?
21 N
2.1N
The force exerted by the earth on the ball is 8N. What is the force on the earth by the ball?
-8N
8N
Air bags are used in cars for safety. Why?
To minimize damage to car
To minimize damage to driver
Which would require a greater force-accelerating a 2 Kg mass at 5 m/s2 or a 4 kg mass at 2 m/s2?
2 Kg mass
4 Kg masss
MAUA+MBUB= MAVA+MAVB
conservation of momentum formula
Newtons third law
Newtons second law
Newtons first law
Find the acceleration of a body of mass 2 Kg, if a force of 30N acts on the body?
15m/s2
60m/s2
Why does a fielder catch a fast moving cricket ball by pulling back his arms while catching it? this is a good example of Impulse
To reduce the impact
To increase the time of impact
To experience a smaller force for a longer time
All of the above
The force that binds us to the earth is explained by_____
universal law of gravitation
Newtons first law
Keplers law
None
What happens to the force between two objects, if the masses of both the objects are doubled and the distance between them is also doubled?
Doubled
Remains same
Mass of an object is 10 Kg. What is it's weight on the earth?
98N
10N
Two spherical balls of mass 10 kg each are placed with their centres 10 cm apart. Find the gravitational force of attraction between them?
104G Newtons
100 Newtons
What is the value of G Universal gravitational constant?
9.8m/s2
6.67 x 10-11Nm2Kg-2
How much does a man of weight on the moon if his weight on the earth is 60N?
0N
10N
The cork floats but the nail sinks, this is due to _____
Difference in densities
Diference in accelerations
Which is denser, water or milk?
Milk
water
If a child applies 1N of thrust/force acts on a knife edge of area 1mm2, The pressure applied by knife to cut the apple is _____?
1000Pa
1Pa
1000000Pa
100Pa
Archimedes a greek scientist ran through the streets shouting "Eureka" to the kings court. What does the word mean_____
My principle
I have got it
Bath tub
Gold is pure
