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.
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).
0.56
1.50
1.79
2.02
Correct answer is C
N = \(\frac{1}{sinθ}\)
= \(\frac{1}{sin34}\)
= 1.79