The rate of change of displacement with time is called
The velocity
The speed
The acceleration
The average speed
If we know initial velocity (u), final velocity (v) and time (t). Then the equation for acceleration is
Communication satellites circle the earth in its orbit
Below the equator
At the equator
Above the equator
Depends on the size of the satellite
The ratio of the total distance travelled by the body to the total time of journey is called
Which satellites should be well separated from each other?
Communication satellites
Monitoring satellites
Artificial satellites
Natural satellites
Inertia is measured by
The mass of a body
The speed of a body
The acceleration of a body
The velocity of a body.
Tick and ten tick are used as units of time in
Motion sensors
Tickertape timer
Photogate timer
Photography
Which of the following defines force?
Newton 's first law of motion
Newton 's second law of motion
Newton 's third law of motion
All the above
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
Which of the following defines inertia?
Newton’s first law of motion
Newton’s second law of motion
Newton’s third law of motion
