What is the unit of energy?
Newton
Joule
Kg
Coulomb
Kinetic energy is directly proportional to
The square of the velocity
The velocity
The cube of the velocity
Half of the velocity
Which is conserved in a perfectly elastic collision?
Kinetic energy
Potential energy
Weight of the body
Mass of the body
The ratio of the total distance travelled by the body to the total time of journey is called
The average speed
The acceleration
The speed
When a car rounds a bend, a frictional force exerted by the road is
Inwards
Outwards
Forwards
Backwards
Which of the following satellites are used for transmitting television?
Monitoring satellites
Artificial satellites
Geostationary satellites
All satellites
Which satellites are called Geo stationary satellites?
Monitoring Satellites
Artificial Satellites
Communication Satellites
Natural Satellites
What is the K. E of a football of mass 0.4 kg, moving with velocity 20 m/s?
8 J
80 J
0.8 J
0.08 J
A device which is useful for analyzing motion in laboratory is
Galvanometer
Ammeter
Motion sensor
All the above
Inertia is measured by
The mass of a body
The speed of a body
The acceleration of a body
The velocity of a body.
