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.
I and III only
I and II only
II and III only
I, II and III
Correct answer is A
In SHM, the body must have acceleration in a direction opposite to the displacement and the acceleration must be directly proportional to displacement. Also, the acceleration must be directed towards its mean position. This is not the case with a football on the pitch.
momentum
Inertia
impulse
Energy
Correct answer is B
Inertia is the resistance of the object to any change in its motion, including a change in direction. An object will stay still or keep moving at the same speed and in a straight line, unless it is acted upon by an external unbalanced force.
The diagram above illustrates a simple barometer. Which distance measures the atmospheric pressure?
PQ
QR
RS
QS
Correct answer is B
The height of the mercury column in a simple barometer is calculated as the atmospheric pressure.
The general definition of elastic modulus is
\(\frac{stress}{strain}\)
\(\frac{strain}{stress}\)
\(stress \times strain\)
\(\sqrt{\frac{stress}{strain}}\)
Correct answer is A
Elastic modulus is the ratio of pressure (stress) applied to a body to the resistance (strain) produced by the body.
= \(\frac{stress}{strain}\)
The S.I unit for sound energy is
Hz
cd
dB
J
Correct answer is D
Every form of energy is measured in joules (J).