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.
decrease because the density of water decreases with temperature
increase because the density of water decreases with temperature
decreases because the density of water increases with water temperature
increase because the density of water increases with temperature
Correct answer is A
No explanation has been provided for this answer.
1.5%
1.1%
0.4%
0.1%
Correct answer is B
Y = \(\frac{\Delta V}{V \times \Delta \theta}\)
3 x 10-5 x 1.2 = \(\frac{\Delta\ V}{10^{-6}\times\ (573 - 273)}\)
\(\Delta\)V = 1080 x 10-11m3
%\(\Delta\)V = \(\frac{1080 \times\ 10}{10^{-6}}\) x 100
= 1.08%
\(\approx\) = 1.1%
Temperature is the measure of the
quantity of heat transferred into the molecules of an object
mean kinetic energy of the molecules of the object
kinetic energy of any individual molecule of the substance
amount of work done by the molecules of the object
Correct answer is B
No explanation has been provided for this answer.
atmospheric pressure acts on the surface of the lake
pressure increases with depth
density remains constant with pressure
the bubble experiences an upthrust
Correct answer is B
No explanation has been provided for this answer.
8000N
4000N
2000N
31N
Correct answer is A
Pressure on piston = pressure on the plunger
\(\frac{500}{\pi\ \times\ 0.2 \times\ 0.2}\) = \(\frac{F}{\pi\ \times\ 0.8 \times\ 0.8}\)
F = 8000N