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.
a larger mass of air is set vibrating by the table top
the whole table vibrates in resonance
the whole table has acquired a larger frequency
the fork and table have the same frequency
the amplitude of the vibrating fork is increased.
Correct answer is C
No explanation has been provided for this answer.
8.75m
16.50m
87.75m
123.75m
330.00m
Correct answer is D
sound wave
transverse wave
longitudinal wave
stationary wave
mechanical wave
Correct answer is B
No explanation has been provided for this answer.
Which of the following is not a suitable method for reducing loss of heat from a piece of hot iron?
Wrapping it in cotton wool
painting it black
Placing it in a vacuum
Placing it on rubber supports
Keeping it in a closed wooden box
Correct answer is B
No explanation has been provided for this answer.
Heat transfer by convection in a liquid is due to the
translatory motion of the molecules of the liquid
increased vibration of the molecules of the liquid about their mean positions
expansion of the liquid as it is heated
latent heat of vaporization of the liquid
ability of the liquid to evaporate at all temperatures
Correct answer is A
No explanation has been provided for this answer.