Class 4 Science Chapter 6 Test

Distance travelled in unit time is called……..?

_____is simply a ramp

The lever that turns around a certain point is called…….?

It is a simple machine which is usually a long rod:

_____ changes sliding motion into rolling motion?

The major invention in the history of mankind

A hand drill consists of two mutually perpendicular………?

Which machine consists of grooved wheel?

A simple machine used to lift or lower heavy object is………?

It is used to draw water out of a well………?

Scissors, nut cracker, wheel barrow and human arm are example of……?

The change in position of an object is called:

Which simple machine is used in bicycle to travel:

People use simple machines because:

Anything that causes change in position or speed is called:

Which is not a force?

Force of friction can be reduce by help of ….....?

Distance covered with time called………..?

Which of these is not an example of an inclined plane?

Which is not a type of simple machine

A force which occurs when two surfaces come in contact and slows down motion while acting in:

When up thrust is equal to weight of an object, it…………?

Friction between moving parts of machine causes………….?

Force can………………?

An example of simple machine is …………?

Speed of a car can be changed by …………?

Screw driver and scissor are called …………?

Lifting a box is………………?

The force which stop or tends to stop moving object is called:

All bodies are attracted towards the Earth due to:

The act of pushing or pulling a body is called:

When a body changes its position, it is called______?