The ratio of the total distance travelled by the body to the total time of journey is called
The velocity
The average speed
The acceleration
The speed
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
Which one of the following is conserved in a perfectly elastic collision?
Kinetic energy
Potential energy
Weight of the body
Mass of the body
Which satellites should be well separated from each other?
Communication satellites
Monitoring satellites
Artificial satellites
Natural satellites
If we know initial velocity (u), final velocity (v) and time (t). Then the equation for acceleration is:
Which of the following satellites are used for transmitting television?
Geostationary satellites
All satellites
Tick and ten tick are used as units of time in
Motion sensors
Ticker tape timer
Photo gate timer
Photography
Which satellite is used to map regions of Earth's surface?
The force of gravity acting on a body is called
Mass
Weight
Inertia
Acceleration