BSc First-Year Physics Notes
1. Mechanics
(A) Kinematics
Displacement - Shortest distance between initial and final position.
Velocity - Rate of change of displacement: v = ds/dt, a = dv/dt
(B) Laws of Motion
1. Newton's First Law - An object at rest or in uniform motion will remain so unless acted upon by an
external force.
2. Newton's Second Law - Force equals mass times acceleration: F = ma
(C) Work, Energy, and Power
Work - W = F x d x costheta
K.E = 1/2 mv², P.E = mgh, P = W/t
(D) Gravitation
Newton's Law of Gravitation - F = G(m1m2/r²)
2. Electricity and Magnetism
(A) Electric Charges and Fields
Coulomb's Law - F = k(q1q2/r²)
Electric Field - E = F/q, V = W/q
(B) Current and Resistance
1. Mechanics
(A) Kinematics
Displacement - Shortest distance between initial and final position.
Velocity - Rate of change of displacement: v = ds/dt, a = dv/dt
(B) Laws of Motion
1. Newton's First Law - An object at rest or in uniform motion will remain so unless acted upon by an
external force.
2. Newton's Second Law - Force equals mass times acceleration: F = ma
(C) Work, Energy, and Power
Work - W = F x d x costheta
K.E = 1/2 mv², P.E = mgh, P = W/t
(D) Gravitation
Newton's Law of Gravitation - F = G(m1m2/r²)
2. Electricity and Magnetism
(A) Electric Charges and Fields
Coulomb's Law - F = k(q1q2/r²)
Electric Field - E = F/q, V = W/q
(B) Current and Resistance
