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.
A ball is swung in a horizontal circle of centre O with a constant speed. acceleration?
Away from O
Along the Circumference of the circle
Toward centre O
Along a tangent to the circle
Correct answer is C
Simple harmonic motion (SHM) is a special type of periodic motion where the restoring force on the moving object is directly proportional to the magnitude of the object's displacement and acts towards the object's equilibrium position.
Which of the following units is equivalent to the unit of electric current?
C s\({-1}\)
W
J s\({-1}\)
C
Correct answer is A
Q = It
I = Q/t
I = C / s
= Cs\(^{-1}\)
An atom that emits an a-particle?
may become a different element.
becomes a different isotope of the element
daughter with increased mass
becomes a daughter of a different element always
Correct answer is A
Alpha decay or α-decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle (helium nucleus) and
thereby transforms or 'decays' into a different atomic nucleus, with a mass number that is reduced by four and an atomic number that is reduced by two.
15m
84m
72m
48m
Correct answer is C
Distance covered = Area under the graph
D = area of square + area of trapezium
D = L x L + 1/2(a+b)h
D = 4 x 4 + 1/2( 4+ 10)8
D = 16 + 1/2 x 14 x 8
D = 16 + 56
D = 72m.
2.00 x 10\(_{-3}\)H
1.59 x 10\(_{-3}\)H
1.09 x 10\(_{-3}\)H
6.28x 10\(_{-3}\)H
Correct answer is B
No explanation has been provided for this answer.