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.
126.50cm3
126.25cm3
126.00cm3
125.00cm3
Correct answer is A
Recall that: Volume = L * L * L → 5 * 5 * 5 = 125
Y = \(\frac{V_2 - V_1}{V_1 \times \theta}\)
3 x 4 x 10-5 = \(\frac{V_2 - 125}{125 \times (120 - 20)}\)
V2 = 126.50cm3
22.5oC
29.0oC
29.0oC
100.0oC
Correct answer is A
20cm .... 100oC
4.5cm .... \(\theta\)
0cm ....0oC
\(\frac{4.5 - 0}{20 - 0}\) = \(\frac{0 - 0}{100 - 0}\)
\(\theta\) = 22.5oC
0.125cm-1
0.250gcm-1
0.625cm-1
2.500cm-1
Correct answer is C
Height below liquid = 1 - \(\frac{1}{5}\) = \(\frac{4}{5}\)
volume of cube = 103cm3
volume of liquid displaced = \(\frac{4}{5}\) x 1000
= 800cm3
density of liquid displaced;
= \(\frac{500}{800}\)
= 0.625cm-1
1.12cm
2.14cm
2.24cm
2.52cm
Correct answer is C
\(\frac{F_1}{e_1}\) = \(\frac{F_2}{e_2}\)
\(\frac{5}{0.56}\) = \(\frac{20}{e_2}\)
e2 = 2.24cm
The mechanical advantage(MA) of an inclined plane depends on
its length
its height
the product of its length and height
the ratio of its length to its height
Correct answer is D
No explanation has been provided for this answer.