If a bucket containing water is kept revolving at a high speed in a vertical circle, the water does not spill. It gets
Centripetal force
Magnetic force
Gravitational force
None of these
A particle is travelling with a constant speed. This means that
its position remains constant as time passes
it covers equal distances in equal time intervals
its acceleration is zero
it does not change its direction of motion
Tiny blocks of mud sticking to a rotating cycle tyre has
Uniform acceleration
Circular motion
Periodic motion
Nonuniform motion
Path of a projectile is known as
Parabola
Hyperbola
Straight line
Circle
A projectile has maximum range when the angle of projection is
900
450
600
300
S.I unit of momentum is
kg m/s2
kg m/s
kgm-1s-1
kgs
If the frequency of vibration is equal to the natural frequency of the body, then it is known as
Resonance
Reverberation
Persistence of audibility
Persistence of vision
Velocity is a
scalar quantity
vector quantity
Both scalar and vector
none of these
If A and B are two objects with masses 6 kg and 34 kg respectively,then
A has more inertia than B
B has more inertia than A
A and B have same inertia
none of the two has inertia
A car which travels through the road with different velocities in equal intervals of time is said to have
Nonuniform acceleration
Retardation
Uniform motion
