MY Paper
MCQ’s
MCQ’s
1 mi is equivalent to 1609m so 55mph is equal to :
A plane is travelling north at 200 m/s turns and then
travels south at 200m/s. The change in its velocity is:
Ten seconds after an electric fan is turned on, the
fan rotates at 300 rev/min. Its average angular acceleration is:
An object attached to one end of a spring makes 20
vibrations in 10 seconds. Its angular frequency is:
In SHM , restoring force must be proportional to:
A particle oscillating in SHM is:
Subjective:
1. When a car drives off a cliff, why does it rotate forward as it falls?
2. Flamingos have broad, webbed feet, how does it enhance its stability while standing on one leg?
3. The tip of a funning fork goes through 540 vibration is 0.800s. Find the angular frequency and the period of the motion.
4. 'Captain Planet' is somewhere between galaxies. When a gong sounds in a neighboring spaceship, Captain reacts to the sound. What is wrong with this scenario?
5. The angular speed of a car engine is increased from 1170 rev/min to 2880 rev/min in 12.6 s.
a) Find the average angular acceleration in rev/min.
b) How many revolutions does the engine make during this time?
6. Define Beats, reflection etc
1. When a car drives off a cliff, why does it rotate forward as it falls?
2. Flamingos have broad, webbed feet, how does it enhance its stability while standing on one leg?
3. The tip of a funning fork goes through 540 vibration is 0.800s. Find the angular frequency and the period of the motion.
4. 'Captain Planet' is somewhere between galaxies. When a gong sounds in a neighboring spaceship, Captain reacts to the sound. What is wrong with this scenario?
5. The angular speed of a car engine is increased from 1170 rev/min to 2880 rev/min in 12.6 s.
a) Find the average angular acceleration in rev/min.
b) How many revolutions does the engine make during this time?
6. Define Beats, reflection etc
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