motion and measurement of distances

Name the invention which made a great change in modes of transport.

• A car

• A steam engine

• A wheel

• A truck

Observe the following figures and state which type of motion is that?

• periodic motion

• Rectilinear motion

• circular motion

• linear motion

Which one of them is periodic motion ?

• heart-beat in a healthy person

• Fan rotate

• train moving on the track

• motion of an animals

Which device we can use to measure the length of a curved line?

• scale

• measuring tape

• thread

• hand spam

2 cm = …………… mm.

• 10

• 100

• 20

• 200

Name the SI unit of length.

• kilo

• meter

• gram

• milimeter

Motion of the needle of a sewing machine is

• periodic motion

• circular motion

• rectilinear motion

• sleeping motion

What is full form of [SI units]

• International System units

• Social International units

• System International units

• Meter units

Earliest mode of transparent on water was

• car

• logs tied together

• hovercarft

• bull lock cart

Yard is measure of distance between

• TWO HANDS

• HAND AND FEET

• BETWEEN CHIN AND HAND

• END OF THE ARM AND CHIN