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.
0.8
0.4
1.0
0.6
Correct answer is D
coefficient of friction
= \(\frac{F}{R}\)
=\(\frac{F}{mg}\)
= \(\frac{500}{80 \times 10}\)
= 0.625
11.50 kw
12.60 kw
11.25 kw
12.10 kw
Correct answer is C
Power = \(\frac{work done}{time taken}\)
where 1 min = 60s
= \(\frac{mgh}{t}\)
= \(\frac{750 \times 10 \times 90}{60}\)
= 11250w or 11.25kw
III, IV and V only
II, III and V only
II, III and IV only
I,II and III only
Correct answer is B
Simple harmonic motion is the motion of a body whose acceleration is directed towards a fixed point and is directly proportional to its displacement from point.
Statements ii, iii and v are clear examples
10 ms-1
8 ms-1
40 ms-1
20 ms-1
Correct answer is C
At maximum height, the final velocity, v = 0
thus from v = u - gt
0 = u - gt
∴ U = at = 10 x 4 = 40 mls
1.7 ms-2
3.50 ms-2
1.00 ms-2
2.00 ms-2
Correct answer is D
Acceleration = \(\frac{ΔV}{Δt}\)
= \(\frac{V - U}{t_2 - t_1}\)
= \(\frac{35 - 15}{20 - 10}\)
= \(\frac{20}{10}\)
= 2ms\(^-2\)