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.
The ice point on the absolute scale of temperature is
0K
32K
100K
273K
Correct answer is A
The absolute zero of the scale of temperature being the ice point of the absolute scale of temperature is 0K, which is -273°C.
0.0\(ms^{-1}\)
5.6\(ms^{-1}\)
10.6\(ms^{-1}\)
15.0\(ms^{-1}\)
Correct answer is C
The horizontal component of velocity, \(V_{x}\), is unaffected by the acceleration of free fall and remains constant.
\(V_{x} = U_{x} = Ucos\theta\)
= \(15 \times cos45 = 15\times 0.7071\)
\(\approxeq 10.6ms^{-1}\)
The graph of density against temperature for water is correctly illustrated by
I
II
III
IV
Correct answer is C
No explanation has been provided for this answer.
I and II only
II and IV only
I,II and III
I, II and IV
Correct answer is C
The rate of cooling of liduid according to Newton's law of cooling depends on:
- Temperature of the liquid
- Temperature of the enclosure
- The area of the exposed surface
- The nature and extent of the surface of the containing vessel
An object at rest is said to possess
potential energy
kinetic energy
chemical energy
electrical energy
Correct answer is A
Potential energy is the energy that is stored in an object due to its position relative to some zero position