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.
0.1oC
1.0oC
42oC
100oC
4.20oC
Correct answer is B
Potential Energy = Heat Energy
mgh = Mc\(\Delta \theta = \frac{gh}{c} = \frac{10 \times 240}{4.20 \times 10^3}\)
= 1.0oC
1.0 x 10-3k-1
2.0 x 10-4k-1
2.0 x 10-5k-1
1.0 x 10-5k-1
2.0 x 10-6k-1
Correct answer is C
\(\alpha = \frac{\Delta L}{L \Delta \theta} = \frac{0.020}{20 \times (55 - 5)} = 2.0 \times 10^{-5}\)
S1, would move upward but S2 would not move
S1 would not move but S2 would move upwards
both S1 and S2 would move upwards
S1 would move downwards and S2 would move downwardw
S1 would move downwards and S2 wouldnmove downwards
Correct answer is B
No explanation has been provided for this answer.
west
east
north-west
north-east
south-west
Correct answer is C
No explanation has been provided for this answer.
300N
200N
140N
120N
20N
Correct answer is D
Eff = \(\frac{MA}{VR}\) x 100%
40 = \(\frac{MA}{60}\)
MA = 240
\(\frac{L}{E} = \frac{240}{100}\)
W = L = \(\frac{240}{100}\) x 50
= 120N