Motion Flashcards
1
Q
Motion is described in term of
A
Distance speed acceleration time
2
Q
An object covers unequal distance in equal interval of time
A
Non uniform motion
3
Q
SI unit of speed / velocity
A
ms^-1
4
Q
Acceleration
A
Change in velocity/time
SI unit ms^-2
5
Q
Speed in circular motion
A
2πr/T
6
Q
Equation of motion
A
V=u+at
S=ut+1/2(at^2)
V^2=u^2+2as
7
Q
Centripetal acceleration
Centripetal force
A
a=v^2/r. V velocity
F=ma
F=mv^2/ r
8
Q
Example of centrifugal force
A
Dryer in washing machine
9
Q
Force like gravitational force, frictional force, magnetic force electrostatic force etc
A
Centripetal force
10
Q
Force which acts on a body moving in a circular path directed towards the centre
A
Centripetal force
11
Q
The centrifugal force is
A
A virtual force
