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WorksheetsPHYS6.05 Uniform Circular Motion
Total questions: 22
Worksheet time: 22mins
What statement is TRUE of objects experiencing uniform circular motion?
They have constant speed
They have constant velocity
They are not accelrating
They do not have inertia
Because of inertia, all moving objects want to__.
Move in straight lines at constant speeds
Slow down and stop
Move in a circular path
Speed up to the speed of light
A marble rolls through the loop pictured below starting at P and leaving the loop at Q. What will the ball do when it leaves the loop at Q?
A car makes a left hand turn as pictured, but at point P, it hits a patch of ice and begins to slide. Which path does the car follow on the ice?
A
B
C
D
A cart moves clockwise around the circle in the picture. Which arrow shows the direction of the cart's velocity?
A
B
C
D
Two children, Jack and Jill, ride on a merry-go-round. Jack is farther from the axis of rotation than Jill. Which of the following are true statements?
Jill and Jack have the same tangential speed.
Jack has a greater tangential speed than Jill.
Jill has a greater angular speed than Jack.
Jack has less inertia than Jill
The tangential velocity does what as you get farther from the center of a circle
Stay the same
Increase
Decrease
Depends on the mass of the object
The time taken for an object to complete one full rotation is called
Period
Frequency
Angular velocity
Tanget speed
A race car completes three laps of a circular track with a radius of 35 m in 9.0 seconds. Determine the speed of the car.
3.9 m/s
73.3 m/s
24.4 m/s
1.0 m/s
Why does an object experiencing uniform circular motion have an acceleration?
because it ir changing speed
because it is changing direction
because it is moving n a straight line
because it has mass
A particle P is moving in a circle with uniform speed. Which one of the following diagrams correctly shows the direction of the acceleration (a) and velocity (v) of the particle at one instant of time?
A
B
C
D
At the position shown in the diagram, which arrow indicates the direction of the centripetal acceleration of the cart?
A
B
C
D
Bruno the bat has a mass of 0.58 kg and flies at a speed of 0.8 m/s in circle of radius 0.5 m. What is his acceleration?
0.25 m/s2
1.3 m/s2
1.6 m/s2
0.74 m/s2
A student sits on a merry-go-round that has a period of 45.0 seconds. If the student is on a carousel horse that is 4.50 meters from the center, what is the student’s centripetal acceleration?
9.80 m/s2
1.23 m/s2
0.0532 m/s2
0.0876 m/s2
A toy car is following a circular path with a constant speed of v=3 m/s . If the radius of the circular path is 1 m, find The centripetal acceleration of the car
30 m/s2
3 m/s2
9 m/s2
6 m/s2
A truck (m = 3500 kg) drives around a curve in the road (r = 20.0 m) with a constant speed of 12.0 m/s. Determine the centripetal force acting on the truck.
34300 N
70000 N
25200 N
5830 N
A fighter pilot (m = 90.0 kg) flies through a vertical loop (r = 9500 m) at a speed of 285 m/s. Determine the centripetal force acting on the pilot.
770 N
882 N
25700 N
8.55 N
