Motion and Measurement of distances

The SI unit of length is

• millimetre

• kilometre

• metre

• centimetre

One Billionth of a second is called

• Micro second

• Nano second

• Pico second

• Femto second

Which of the following quantities are physical quantities

• Length

• Mass

• Time

• All of these

Bullock cart moging on a straight road is which type of motion

• Circular motion

• Periodic motion

• Rectilinear motion

• Rotatory motion

Motion of the earth around the sun is which type of motion

• Rectilinear motion

• Random motion

• Periodic motion

• Oscillatory motion

Submultiple of length is

• Metre

• Kilometre

• Centimetre

• handspan

Which of these is an example of linear motion

• car moving on straight road

• moving blades of mixtures

• motion of gaint wheel

• second's hand of clock

The to and fro of a simple pendulum is called

• Rotatory motion

• Oscillatory motion

• Vibratory motion

• All of these

The most common time measuring devices

• Sun dial

• Pendulum

• Clocks

• All of these

The smallest time interval that can be measured with commonly available clocks and watches is

• hour

• minute

• second

• All of these