Which among the following is not a fundamental quantity?
Velocity
Length
Mass
Time
The most appropriate unit for expressing the speed of a space rocket is
m / s
m / h
Km / h
Km / min
The basic unit of speed is
km/ min
m/min
km/h
m/s
The correct relation between speed, distance and time is
speed= distance / time
speed= time / distance
speed= distance x time
distance= speed / time
Motion of a mango falling from a tree is
oscillatory motion
translatory motion
at rest
rotatory motion
The clocks and watches which are used for measuring time are based on :
Rectilinear motion
Circular motion
Periodic motion
Rotational motion
A spinning top has
Translatoy motion
Rotationary motion
Oscillatory motion
The girl on the bicyle is in _______ in relation to the road.
rest
motion
oscillary motion
rotationary motion
The regular vibrations of which of the following electrically driven crystals are used for measuring time very accurately
Calcite crystals
quadric crystals
Chrome crystals
Quartz crystals
The sundial is a device for measuring
Speed
Distance
Height
