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
What is the unit of energy?
Newton
Joule
Kg
Coulomb
When a car rounds a bend, a frictional force exerted by the road is
Inwards
Outwards
Forwards
Backwards
Which satellite is used to map regions of Earth's surface?
Natural satellites
Artificial satellites
Geostationary satellites
Monitoring satellites
A device which is useful for analyzing motion in laboratory is
Galvanometer
Ammeter
Motion sensor
All the above
Which of the following defines force?
Newton 's first law of motion
Newton 's second law of motion
Newton 's third law of motion
Rate of change of velocity with time is called
Average speed
Acceleration
Average velocity
Speed
The energy possessed by a body because of its motion is called
Kinetic energy
Potential energy
Magnetic energy
Elasticity
The rate of change of displacement with time is called
The velocity
The speed
The acceleration
The average speed
The ratio of the total distance travelled by the body to the total time of journey is called
