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.
P0/5
4P0/5
P0
5P0
Correct answer is D
At constant T, P1 V1 = P2 V2.
Let P1 = P0 and V1 = V0, then solve accordingly.
As pressure is varies inversely as volume according to:
Boyle's law, also referred to as the Boyle–Mariotte law, or Mariotte's law, is an experimental gas law that describes how the pressure of a gas tends to decrease as the volume of the container increases.
As volume is reduced by one-fifth; pressure will increase by five times.
When temperature of a liquid increases, its surface tension
Decreases
Increases
Remain Constant
Increases then decreases
Correct answer is A
No explanation has been provided for this answer.
5/3
4/3
3/4
7/10
Correct answer is C
R.D = loss in weight in liquid X loss in weight in water.
R.D = (10 - 7)/(10 - 6) = 3/4
5 . 0 x 104 Nm-2
5 . 0 x 105 Nm-2
2 . 0 x 108 Nm-2
2 . 0 x 109 Nm-2
Correct answer is D
Y = stress/strain, but stress = 107Nm-2 (given).
Strain = e/l0. = (10.05 - 10.00)/10.00 = 0.005
Thus Y = 107/0.005 = 2 . 0 x 109Nm-2
When the brakes in a car are applied, the frictional force force on the tyres is
is a disadvantage because it is in the direction of the motion of the car
is a disadvantage because it is in the opposite direction of the motion of the car
is an advantage because it is in the direction of the motion of the car
is an advantage because it is in the opposite direction of the motion of the car
Correct answer is D
No explanation has been provided for this answer.