6.1 Circular Motion

Question 1

Circular Motion

Answer 1

When a body moves in a circular path

Question 2

Time Period

Answer 2

The time taken by a body to complete one circle

Question 3

Frequency

Answer 3

Number of revolutions in one second

Question 4

Angular Displacement

Answer 4

The angle projected by initial and final position to centre

Question 5

Angular Velocity

Answer 5

Rate of change of angular displacement with respect to time

Question 6

Angular Velocity Formulae

Answer 6

ω =  v/r
ω - θ/t
ω = 2π/T
ω = 2πf
where ω is angular velocity in radians per second

Question 7

Centripetal Force

Answer 7

The necessary force required to move any body in a circular path

Question 8

Centripetal Acceleration

Answer 8

The acceleration produced due to the centripetal force

Question 9

Centripetal Acceleration Formula

Answer 9

a = v^2/r

Question 10

Centripetal Force Formula

Answer 10

F = mv^2/r or F = mω^2/r

Question 11

Time Period Formula

Answer 11

T = 2πr/v

Question 12

Frequency Formula

Answer 12

f = 1/T

Question 13

Angular Displacement Formula

Answer 13

x = θr in radian where x is the displacement around the circle

Question 14

Angular Speed

Answer 14

The rate at which an object changes its angle in radians

Question 15

Degrees to Radian Formula

Answer 15

θ = θ° x π/180

Question 16

Angular Displacement Formula

Answer 16

Δθ = θf - θi