Velocity is a
Scalar quantity
Vector quantity
Both scalar and vector
Cannot be predicted
Example for oscillatory motion is
Rotation of the Earth
Revolution of the Earth
Motion of a simple pendulum
All the above
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
The force of gravity acting on a body is called
Mass of the body
Weight of the body
Inertia of the body
Momentum of the body
What is the acceleration of a particle moving with uniform velocity?
1 ms-2
2 ms-2
0
∞
The SI unit of velocity is
m/s
cm/s
km/hr
m/s2
For motion on a straight line path with constant acceleration,the ratio of magnitude of displacement and the distance covered is
= 1
> 1
< 1
≤ 1
1/2 mv2 = mgh. This is an example of
Newton's first law of motion
Law of conservation of energy
Elastic collision
Projectile motion
Unit of Angle is
Candela
Weber
Radian
Lux
The angular velocity of the minutes hand of a clock is
π rad per second 180
π rad per second 1800
π rad per second 60
π rad per second 360
