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.
i, iii only
i, ii, iii only
i, iii, and iv only
i, ii, iii and iv
Correct answer is A
No explanation has been provided for this answer.
25.0cm
22.5cm
20.0cm
15.0cm
Correct answer is B
\(\frac{15}{30 - L}\) = \(\frac{10}{5}\)
L = 22.5cm
Calculate the velocity ratio of a screw jack of pitch 0.3cm if the length of the tommy bar is 21cm
\(\frac{1}{140}\)\(\pi\)
14\(\pi\)
70\(\pi\)
140\(\pi\)
Correct answer is D
V.R = \(\frac{2\pi L}{p}\)
= \(\frac{2 \times \pi \times 2}{0.3}\)
V.R = 140\(\pi\)
400.0N
40.0N
4.0N
0.4N
Correct answer is B
F = \(\mu\)mg
= 0.2 x 20 x 10
= 40N
A cone in an unstable equilibrium has its potential energy
decreased
increased
unchanged
oscillating
Correct answer is B
No explanation has been provided for this answer.