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.
600.0N
40.0N
24.0N
20.0N
Correct answer is C
V.R = \(\frac{R}{r} = \frac{30}{6} = 5\)
\(\gamma = \frac{M.A}{V.R} \times \frac{100}{1} \)
M.A = \(\frac{100 \times 5}{100} = 5\)
Effort = \(\frac{L}{M.A} = \frac{120}{5}\)
= 24N
Which of the following statements correctly defines a simple machine? A device
that can produce electric current
which can only carry people from one place to another
with which work can be done easily
which changes the state of rest or of uniform motion of an object
Correct answer is C
No explanation has been provided for this answer.
0.75m
2.25m
8.22m
15.00m
Correct answer is C
S = U\(\sqrt{\frac{2h}{g}}\)
= 15\(\sqrt{\frac{2 \times 1.5}{10}}\)
= 8.22m
An object of mass 5.0 kg moves with a velocity of 10ms-1. Calculate its momentum.
50.0 kgms-1
15.0 kgms-1
2.0 kgms-1
0.5 kgms-1
Correct answer is A
Momentum = MV
= 5 x 10 = 50
TA = 4TB
TA = \(\frac{1}{4} T_B\)
TA = TB
TA = 5TB
Correct answer is C
The period of a simple pendulum is dependent on the frequency. It is also dependent on the length of the pendulum but not the mass. Since the two pendulums have equal length, then their periods are equal as well.