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.
6000m
3000m
1500m
375m
Correct answer is B
t = 4s ; v = 150ms-1
depth = X ; but 2X = vt
X = vt2 = 1500×42
X = 3000m
50.0cm
2.5 cm
0.5cm
0.3cm
Correct answer is D
Y = 0.3 sin(0.5x - 50t) compare with,
y = A sin(kx - wt)
A = 0.3m
The two kettles will cool down at the same rate
the polished kettle cools down more quickly by conduction
the kettle covered with soot cools down more quickly because it is a good radiator
the kettle covered with soot cools down more quickly by the process of heat convection
Correct answer is C
No explanation has been provided for this answer.
If a room is saturated with water vapour, the temperature of the room must be
at 0oC
above the dew point
at 100oC
below or at the dew point
Correct answer is D
No explanation has been provided for this answer.
336W
450W
560W
600W
Correct answer is C
p x t = heat energy
P x 1 x 60 = 100 x 336
p = 560W