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.
When table salt is added to ice, the melting point of the ice
is raised
is lowered
remains unchanged
is first raised, then lowered
Correct answer is B
No explanation has been provided for this answer.
8 minutes
4 minutes
2 minutes
1 minute
Correct answer is C
No explanation has been provided for this answer.
ideal gases
a fixed mass of gas
a mixture of gases
a gas at variable temperature
Correct answer is A
No explanation has been provided for this answer.
0.26m
0.44m
0.53m
0.84m
Correct answer is B
\(l_2 - l_1 = \alpha l_1 (\theta_2 - \theta_1) = 4.0 \times 10^{-3} \times 2(80 - 25)\)
= 0.44m
54.6oC
55.0oC
56.0oC
56.4oC
Correct answer is D
x = \(\frac{102.5 \times 55}{100}\)
= 56.375oC