Communication satellites circle the earth in its orbit
Below the equator
At the equator
Above the equator
Depends on the size of the satellite
Inertia is measured by
The mass of a body
The speed of a body
The acceleration of a body
The velocity of a body
Which of the following satellites are used for weather forecasting?
All satellites
Artificial satellites
Monitoring satellites
Communication satellites
The rate of change of displacement with time is called
The velocity
The speed
The acceleration
The average speed
Which of the following defines inertia?
Newton’s first law
Newton’s second law
Newton’s third law
All the above
Tick and ten tick are used as units of time in
Motion sensors
Ticker tape timer
Photo gate timer
Photography
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
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
