Page 16 - RoboGenius Pro C2

Follow the given steps to build it:

STEP - 1 Take a piece of cardboard and cut a
small hole in the centre.

STEP - 2 Thread a string through the hole,
creating a simple pulley system.

STEP - 3 Attach a small object (like a toy or

eraser) to the string.

ROBO CHECK

A. Tick ( ) the correct option.

1. Select the simple machine used in a see-saw.
STEP - 4 Test your pulley by pulling the string (i) Pulley (ii) Lever

and lifting the object. Observe how it
makes lifting easier. (iii) Inclined plane (iv) Wedge

2. Which of the following is an example of a simple machine?

(i) Bicycle (ii) Scissors

(iii) Pulley (iv) Crane

RoboGenius Pro - II
14