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WorksheetsFLOATING BODIES
Total questions: 20
Worksheet time: 12mins
True
False
Apparent loss of weight must be equal to __________
1) Force of buoyancy
2) pressure
3) area
4) volume
Liquids and gases have _____.
buoyancy
elasticity
ability
The density of gold is 19 gm/cm³. Find the volume of 95 gm of gold.
2 cm³
5 cm³
10 cm³
15 cm³
A unit of pressure equivalent to a force of 1N acting on 1m2 is _____.
1 pascal
1 dyne
1 joule
Density is the amount of ________ per unit of volume
gravity
mass
motion
The pressure P at a certain depth in river water and Q at the same depth in sea water are related as
P=Q
P>Q
P<Q
P-Q=atmospheric pressure
The fundamental unit is
Pascal
Hertz
Second
Newton
Hydrometer is a device used to measure the ____ of liquid.
volume
density
mass
When a body falls freely towards the earth, then its total energy
increases
decreases
remains constant
first increases and then decreases
A car is accelerated on a levelled road and attains a velocity 4 times of its initial velocity. In this process the potential energy of the car
does not change
becomes twice to that of initial
becomes 4 times that of initial
becomes 16 times that of initial
In case of negative work the angle between the force and displacement is
0°
45°
90°
180°
A girl is carrying a school bag of 3 kg mass on her back and moves 200 m on a levelled road. The work done against the gravitational force will be (g = 10 ms²)
6 × 10³ J
6 J
0.6 J
zero
Which one of the following is not the unit of energy?
joule
newton metre
kilowatt
kilowatt hour
The work done on an object does not depend upon the
displacement
force applied
angle between force and displacement
initial velocity of the object
If the area of an object is less then the pressure acting on that object will be
Less
More
Independent of area
None of the above
Units of Relative Density are :-
(a)
