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.
105 J
100 J
42 J
210 J
Correct answer is D
No explanation has been provided for this answer.
The following statements about a loudspeaker are correct except?
its contains a permanent magnet
sound signal converted to varying current signal enters the speech coil
the current in the speech coil creates a magnetic force on the coil
the magnetic force on the speech coil is uni-directional.
Correct answer is A
No explanation has been provided for this answer.
175.0 g
150.0 g
100.0 g
187.5 g
Correct answer is A
No explanation has been provided for this answer.
current and resistance only
current resistance and temperature
current and temperature only
resistance and temperature only
Correct answer is C
No explanation has been provided for this answer.
200m
40m
4m
400m
Correct answer is C
according to the work-energy theorem; Workdone = change in kinetic energy.
W = ∆ K.E
force x distance = \(K.E_2 - K.E_2\)
10 x s = 60 - 20
s = \(\frac{40}{10}\) = 4m.