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WorksheetsFLUIDS
Total questions: 10
Worksheet time: 3mins
The size of an air bubble rising up in water
decreases
increases
remains same
may increase or decrease
Cloud float in atmosphere because of their low
density
pressure
velocity
mass
In a pressure cooker, the food is cooked faster because
increased pressure lowers boiling point
increased pressure raises the boiling point
decreased pressure raises the boiling point
increased pressure lowers the melting point
The weight of the body immersed in a liquid appears to be ___ than its actual weight.
same
more
less
none
The instrument used to measure atmospheric pressure is
(a)
Which of the following factor affects the liquid pressure?
depth
density
acceleration due to gravity
all the above
What is the basic principle behind the working of hydraulic press
Joule's law
Pascal's law
Archimede's principle
Ohm's law
What is the value of one atmospheric pressure
1.013 x 105 Pa
1.013 bar
101.3 kPa
all the above
The unit of Relative density is
Kg m-3
kg m-2
g cm-3
No unit
Assertion: To float, body must displace liquid whose weight is equal to the actual weight
Reason: The body will experience no net downward force in that case
Assertion and reason are true and reason is the correct explanation of assertion
Assertion and reason are true but reason not explains the assertion
Assertion is true but reason is false
Both assertion and reason are false
