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.
0.40ms-2
1.40ms-2
0.26ms-2
2.60ms-2
3.40ms-2
Correct answer is D
R = \(\sqrt{12^2 + 5^2}\)
R = 13N and R = F = ma
13 = 5 x a
= 2.60ms\(^{-2}\)
60N
100N
120N
200N
240N
Correct answer is B
V.R = \(\frac{1}{sin 30}\) = 2
Efficiency = \(\frac{m.A}{V.R}\) x 100%
60 = \(\frac{120}{effort}\) x \(\frac{1}{2}\) x 100
Effort = 100N
If a solid changes directly into a gas when heat is applied the process is called
vaporization
evaporation
sublimation
ionization
conversion
Correct answer is C
No explanation has been provided for this answer.
55.3oC
23.3oC
49.0oC
16.1oC
76.7oC
Correct answer is B
210mm .... 100oC
49mm .... \(\theta\)
0mm .... 0oC
\(\frac{49 - 0}{210 - 0}\) = \(\frac{\theta - 0}{100 - 0}\)
\(\frac{49}{210}\) = \(\frac{\theta}{100}\)
\(\theta\) = 23.3oC
Dewpoint is the temperature at which, water vapour in the atmosphere
turns into steam
solidifies into ice pellets
first condenses into liquid form
is just sufficient to cause cooling
has a relative humidity of fifty percent
Correct answer is D
No explanation has been provided for this answer.