Density (ρ)
ρ = Mass ÷ Volume
ρ = m / V
ρ = m / V
Relative Density
R.D. = Density of substance ÷ Density of water
Relative Density (in masses)
R.D. = Mass of a substance ÷ ( Mass of same volume of water at 4⁰C )
Speed
Speed = Distance ÷ Time
v = d / t
v = d / t
Weight
W = Mass × g
Weight on Earth (in terms of Moon)
Wₑ = 6 × Wₘ
Area
Area = Length × Breadth
A = l × b
A = l × b
Volume
Volume = Length × Breadth × Height
V = l × b × h
V = l × b × h
Average Speed
Average Speed = Total Distance ÷ Total Time
Kinetic Energy (KE)
KE = 1/2 × Mass × Velocity²
KE = ½ m v²
KE = ½ m v²
Potential Energy (PE)
PE = Mass × g × Height
PE = m g h
PE = m g h
Plane Mirror: Object-Image
Distance of object (u) = Distance of image (v)
Image is virtual and laterally inverted
Image is virtual and laterally inverted