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 symbol −10X used to represent which of the particles?
Proton
Neutron
Electrons
Atoms
Correct answer is C
Electron: A sub–atomic particle haring a negative charge and orbiting the nucleus (note: the symbol 0–1e represent the particle of an electrons.)
The optical instrument which is suitable for viewing a nearby objects is ………..?
Telescope
sextant
microscope
periscope
Correct answer is C
Microscope is used for nearby object
4 rads–1
1rads–1–1
3–1rads–1
4rads–1–1
Correct answer is C
M= 3kg, r = 0.7m, v = 2m/s
v = wr
w = angular velocity
r = radius in an tangential circular
v = speed of an object
W = V/δ = 2/ 0.7 = 2.85
W = 2.853rads–1 (total interest whole number)
W = &approx.; 3rads–1Angular velocity (w) = 3rads–1
Both the light and heavy subject reach the ground at the same time
The light object get to the ground first before the heavy object
The heavy object to the ground first before the light object
None get to the ground first
Correct answer is A
(Neglect of Air resistance)
Note: Both objects reach the ground at the same time
For a best result using temperature to achieve an accurate measurement, it is best to use
Mercury thermometer
gas thermometer
clinical thermometer
alcohol thermometer
Correct answer is B
A gas thermometers are more besting use to achieve an accurate temperature than others, such as liquid in glass thermometers such as mercury, clinical and alcohol thermometer