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WorksheetsRevision chapter 5 : Circular Motion
Total questions: 20
Worksheet time: 24mins
Two object each have masses of 9,000,000 kg and are 1 meter apart from each other. What's the force of gravity between them?
5402 N
6320 N
7541 N
7945 N
What's the centripetal acceleration of a .2 kg yoyo spun in a circle with a radius of .7 meters at a velocity of 3 m/s?
8.23 m/s2
10.54 m/s2
12.86 m/s2
17.39 m/s2
Centripetal force is an acceleration of an object moving in circular path whose direction is _________________________of the circular path and whose magnitude is equal to the square of the speed divided by the radius.
towards the tangent
towards the centre
towards the minimum point
towards the maximum point
Where is the net force when the rollercoaster is at the top of the loop?
Towards the sky
Towards the Right
Towards the left
Towards the center of the circle
In uniform circular motion, the magnitude of the _______________________of an object is constant but the __________ is continually changing.
speed, acceleration
speed, direction
acceleration, speed
acceleration, velocity
________________________ defined as the number of revolutions (cycles/rotations) completed in one second.
frequency
period
distance
centripetal acceleration
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
In this diagram, what do the red arrows represent?
the acceleration vector
the velocity vector
the centripetal force vector
the force of gravity
Centripetal force is...
the inward force acting on a body moving at constant speed in a circle
the outwards force acting on a body moving at constant speed in a circle
