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.
continuous dissipation of heat to the room
uniform distribution of thermal energy to all parts of the mixture
that the thermal energy is confined to the mixture
that there is rapid heat exchange
Correct answer is B
No explanation has been provided for this answer.
13oC
20oC
33oC
38oC
Correct answer is B
No explanation has been provided for this answer.
155oC
160oC
169oC
179oC
Correct answer is D
\(\alpha = \frac{L_2 - L_1}{L_1(\theta_2 - \theta_1)}\)
L\(_2\) - L\(_1\) = \(\alpha L_1 (\theta_2 - \theta_1)\)
\(\theta_2 = \frac{0.007}{2.3 \times 10^{-5} \times 1.8}\) + 10
= 179°C
The diagram given is used to determine the
boiling point of water
atmospheric pressure
upper fixed point of a thermometer
amount of water in the atmosphere
Correct answer is C
No explanation has been provided for this answer.
saturated vapour pressure equals the atmospheric pressure
molecules leaves the liquid at a rate equal to the rate at which they return
molecules leave the liquid at a rate higher than that at which they return
molecules leave the liquid at a rate lower than the rate at which they return
Correct answer is A
No explanation has been provided for this answer.