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.
5.20 x 102 kg m-3
1.13 x 103 kg m-3
8.80 x 102 kg m-3
5.20 x 102 kg m-3
Correct answer is D
\(V_T = 5m^3, m_1 = 2 \times 1 \times 10^3 = 2 \times 10^3\)
\(M_2 = 3 \times 8 \times 10^3 = 24 \times 10^3\)
MT = 26 x 103
D = \(\frac{m}{v} = \frac{26 \times 10^3}{5} = 5.2 \times 10^3\)
Which of the following physical quantities is correctly paired with it's corresponding S.I unit?
density[kg m3]
power[Js-1]
specific latent heat [J kg-1K-1]
Pressure [Nm-1]
Correct answer is B
No explanation has been provided for this answer.
Which of the following observations is not an effect of surface tension?
droplets of water dripping slowly from a tap
mercury spilled on a clean glass plate forms spherical droplets
an insect walking across the surface of a pond
water flowing out more easily than engine oil from a container
Correct answer is D
No explanation has been provided for this answer.
Determine the magnitude of P in the diagram above
16N
20N
32N
40N
Correct answer is C
X = 50 sin30 = 30 x 0.5 = 25cm
40 x 20 = p x 25
p = \(\frac{40 \times 20}{25}\)
= 32N
30ms-1
25ms-1
20ms-1
15ms-1
Correct answer is A
S = \(\frac{1}{2} (a + b)h\)
60 = \(\frac{1}{2}(15 + 25)h\)
h = \(\frac{1200}{40} = 30\)m/s