Motion and Measurement

1 metre =……………….. centimetre

(a)  

Which of the following is not a unit of length?

• kilometre

• kilogram

• feet

• yard

• 2 cm

• 1 cm

• 1.5 cm

• 2.5 cm

The movement of the Earth around the Sun is ____.

• periodic motion

• oscillatory motion

• rectilinear motion

• curvilinear motion

What device should a tailor use to take measurement of the length of clothes?

• Ruler

• Measuring tape

• Measuring rod

• Measuring chain

1 decametre is equal to _____ centimetre.

• 1000

• 100

• 10000

• 10

Change in position of a body with time is called_______

• speed

• distance

• displacement

• velocity

A ball rolling on a ground shows ______.

i) Rectilinear motion

ii) Rotational motion

• i only

• ii only

• Both i and ii

• Neither i nor ii

Handspan cannot be used to measure length accurately.

• True

• False

What is the motion of a the arms of a group of soldiers marching?

• Rotational

• Rectilinear

• Periodic

• Both periodic and rotational