Question

In the following pictures, certain devices are used to accomplish certain tasks more easily. Name the devices and discuss how they help.

Answer 1

• Needle: It is used for stitching cloth. Its sharp pointed end helps it pass through the cloth easily.
• Wheelbarrow: It is used to carry heavy loads from one place to another with less effort. Its wheel and handles make movement easier.
• Bottle opener: It helps to remove the cap of a bottle easily by applying a small effort.
• Nail cutter: It is used to cut fingernails easily. Its lever arrangement increases the effect of the force applied by our fingers.
• Pulley: It helps to lift heavy loads by pulling the rope downward, making the work easier and changing the direction of the applied force.
• Axe: Its sharp, wedge-shaped edge helps to cut or split wood with less effort.