Motion and measurement of distances

How can we measure circular objects

• using ruler

• using thread

• using ruler & thread

The choice of device used for the measurement depends on the type of measurement to be made

• True

• False

Our senses are reliable for accurate measurement

• True

• False

Which measuring device can be used to measure the girth of a tree?

• Hands span

• Thread and ruler

• Measuring tape

Which unit of length is used to measure a large distance?

• Kilometer

• meter

• centimeter

• millimeter

Name the type of motion in which a body moves along a curved path.

• Rectilinear or linear motion

• Periodic motion

• Circular or Rotational motion

If the position of an object does not change with time, it is said to be at rest.

• True

• False

55km= (express into meter)

• 5500

• 550

• 550000

• 55000

1cm= (express into millimeters)

• 100

• 50

• 10

• none of the above

Which of the following are example of linear motion?

• rail way track

• a car moving in a curved line

• a straight rail way track

• None of the above