Motions and measurement

The girth of a tree can be measured by using a........

• Plastic ruler

• Metre scale

• Metre rod

• Measuring tape

A communication satellite is stationed in an orbit high above the earth which of the following will not be exhibited by this communication satellite?

• Rotational motion, rectilinear motion

• Periodic motion, circular motion

• Circular motion

• Rectilinear motion

Every measurement consits of.....

• A number

• A unit

• Unit and number both

• Time

The change in position of an object with time is called......

• Measurement

• Balance

• Motion

• Stationary

The tip of the second's hand of a clock is coloured red.Which of the following types of motion will be exhibited by the red coloured tip of the second's hand of this clock?

• Rotational motion, circular motion

• Periodic motion, circular motion

• Circular motion, rectilinear motion

• Rectilinear motion, periodic motion

Smallest unit of length is....

• Km

• mm

• cm

• m

The length of forearm from elbow to finger tips is called.....

• Handspan

• Cubit

• Fist

• Footspan

The height of a man is1.56m.The height is equal to

• 1560mm

• 156mm

• 15.6mm

• 1560cm

A metre scale can measure length accurately upto

• 1cm

• 1mm

• 1km

• 1m

One of the following types of motion will not be exhibited by the earth moving around the sun.This one is

• Rotational motion

• Rectilinear motion

• Circular motion

• Periodic motion