WorksheetsChapter 6: Circular Motion
Total questions: 15
Worksheet time: 23mins
Uniform circular motion is the motion of an object in a circle with
(a)
If displacement is for linear motion, then what is its equivalent in circular motion?
(a)
What is the unit for angular displacement?
θ
rad
radish
theta
What is the symbol for angular velocity?
θ
ψ
ω
Ω
What is the relation between r, s and θ?
θ = rs
r = sθ
s = r/θ
s=rθ
What is the relation between v, r and ω?
v = rω
v = r/ω
ω = vr
ω = r/v
Direction of (a) at every point along the circular path is tangent to the point.
What is the relationship between period, T and frequency, f?
T = f
T is directly proportional to f
T = kf
T = 1/f
Given that the angular velocity of a car is 25 rpm. What is its angular velocity in rad/s?
2.62
0.83
157.1
78.5
centripetal acceleration is the acceleration of an object moving in a circular path and it is directed towards (a) .
Calculate the centripetal acceleration of a lorry traveling on a circular roundabout of radius 600 m at a speed of 90 km/h.
2.50
1.25
1.04
0.89
Centripetal force is the net force required to keep an object of mass,m moving at a speed v on a (a) of radius,r.
Where is the direction of centripetal force?
tangential to the circle
centre and outwards
opposite the direction of motion
towards centre of the circle
A string is attached to a cup of water and then rotated in a vertical circle of 50 cm radius. Calculate the minimum speed such that the water will not spill out.
2.21
22.1
11.1
1.11
What is the force that is keeping the Earth to orbit the Sun?
inertia of the Earth
gravity
location of the Earth
gravitational pull of the moon
