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Class 11
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Motion of a Ball on an Inclined Track
Motion of a Ball on an Inclined Track
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1)
Identify the force responsible for acceleration of a ball down the inclined plane?
Normal force
Cosine component of gravitational force
Frictional force
Sine component of gravitational force
2)
At the top of the inclined plane the ball will have
Zero total energy
Maximum kinetic energy
Equal amount of potential and kinetic energy
Maximum potential energy
3)
As the angle of inclination increases
The ball will roll down slowly
The motion of the ball is not affected
The ball will move with uniform velocity
The ball will roll down faster
4)
Which two forces are responsible for rolling the ball
Cosine component of gravitational force and frictional force
Sine component of gravitational force and frictional force
Normal force and gravitational force
Normal force and frictional force
5)
The ball moving down on an inclined plane
Is in non-uniformly accelerated motion
Is in uniformly accelerated motion
Is in free fall
Is in uniform motion
6)
Whenever the surfaces in contact tend to move with respect to each other, the force of friction comes into play
Only if one object is solid and the other is liquid
Irrespective of whether the objects chosen are solid, liquid or gaseous
Only if one of the two objects is solid
Only if both objects are solid
7)
As a ball rolls down the incline, the distances covered by the ball in successive intervals
Goes on increasing by equal amounts
Goes on decreasing by equal amounts
Will remain the same
Goes on changing by unequal amounts
8)
A metronome is a device that produces pulse at regular intervals to help musicians play in time. The pulse in metronome is measured in BPM (beats-per-minute) which is a unit of
Speed
Time
Frequency
Power
9)
Identify the incorrect method to increase the speed of ball moving down an inclined plane
Increasing the inclination of the plane
Reducing the friction on the path
Decreasing the mass of the ball
Placing the inclined plane in Jupiter
10)
What is the acceleration of an object moving down an inclined plane
mg cos θ
g cos θ
mg sin θ
g sin θ