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.
I, II and IV only
I, III and IV only
I, II and III only
II, III and IV only
Correct answer is A
Reproducible
Sensitive
High accuracy
Low thermal capacity
Consistency.
The process whereby the molecules of different substances move randomly is called?
capillarity
surface tension
osmosis
diffusion
Correct answer is D
No explanation has been provided for this answer.
100N
620N
50N
310N
Correct answer is A
For anybody falling through a viscous liquid, at its terminal velocity. the resultant force acting on its is zero. from the equation: Mg - v - u = 0. where v = viscous drag
U = upthrust Mg = weight of the body.
∴ 36 x 10 - 260 - U = 0
∴ U = 360 - 260 = 100N
Upthrust on the body = 100N.
165kgm-3
100kgm-3
265kgm-3
350kgm-3
Correct answer is A
For liquid W, its mass = vol. x density = 3 x 200 =600kg.
similarly, for liquid L, its mass = 7 x 150 = 1050kg
∴ Total mass of mixture = 600kg + 1050kg =1650kg.
similarly total vol.of the mixture = 3m3 + 7m3 =10m3.
∴ density of the mixture = (Total Mass)/Total Mixture = (1650kg)/10m3
=165kgm-3
it is about to rain
the relative humidity is high
there is plenty of sunshine
the relative humidity is low
Correct answer is D
No explanation has been provided for this answer.