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WorksheetsUniform Circular Motion
Total questions: 10
Worksheet time: 6mins
The motion of the Moon around the Earth is an example of ____________.
uniform action
projectile motion
rectilinear motion
circular motion
A car travels in a circle at constant speed. Which of the following is TRUE about the net force on the car?
zero because the car is not accelerating.
directed towards the direction of travel
directed towards the center of the circle.
none of the above.
What can be said of an object in uniform circular motion?
It has a constant velocity.
It is an example of Newton's First Law in the absence of a force.
It has a constant tangential speed.
none of the choices given
The rider of a Ferris wheel moves at a rate of 0.18 m/s^2.
(a)
Which of the following is a unit of acceleration?
m/s
m/s2
m.s2
m/s.s
What is the most direct cause of a car's centripetal acceleration as it rounds a curve?
The force of the steering wheel
The weight of the car.
The normal force exerted by the road.
The friction between the tires and the road.
A car rounds a 200-m radius curve at 10 m/s. Calculate the centripetal acceleration of the car.
(a)
An object A travelling with speed v and following a circular path of radius R has a centripetal acceleration of a. A second object B moving with twice the speed of the first object around a circular path of radius, 2R has a centripetal acceleration that is
the same as object A
twice that of object A
Four times as much as object A
1/2 as much as object A
The centripetal acceleration, ac also points toward the center of the circle and has a magnitude given by
a =Rv2
a =Rmv2
a =Fm
a = Rv
A 20,000 N car travelling at 12 m/s rounds a curve of radius 125 m. Its The centripetal force acting on the car is
(a)
