Physics Questions and Answers
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
The property of a fluid that is used to determine its suitability as a lubricant is its
capillarity
viscosity
surface tension
relative density
Correct answer is B
No explanation has been provided for this answer.
is the same at all points in the liquid
decreases with depth
is the same in all directions at a given point
is equal to the atmospheric pressure
Correct answer is C
No explanation has been provided for this answer.
0.20m
0.25m
0.40m
0.50m
Correct answer is A
P = \(\frac{M}{AL}\)
L = \(\frac{M}{CA}\)
= \(\frac{1.76}{7000 \times 0.001257}\)
= 0.2m
The density P of a spherical ball of diameter d and mass m is given by
P = \(\frac{3m}{4 \pi d^3}\)
p = 4\(\pi md^3\)
p = \(\frac{6m}{\pi d^3}\)
p = \(\frac{3m}{2 \pi d^3}\)
Correct answer is C
p = \(\frac{M}{V} = \frac{M}{\frac{4}{3} \pi (\frac{d}{\pi})^3}\)
= \(\frac{6m}{\pi d^3}\)
Which of the following statements is not correct?
molecules of ice, water and water vapour have equal intermolecular distances
molecules of ice, water and water vapour do not differ in the structure of their molecules
molecules of water vapour attract each other with forces far less than the forces of attraction between water molecules
water is less compressible than water vapour
Correct answer is A
No explanation has been provided for this answer.