Question

Which machines will you use to do the following work? Write their types.

(a) To remove the lid of a tin. Opener Lever of the second order

(b) To lift bricks to the top of a tall building Crane Complex machine

(c) To cut vegetable Knife Wedge – Simple machine.

(d) To draw water from a well Pulley Simple machine.

(e) To hold a papad for roasting it. A pair of tongs Lever of the third order.

Answer 1

(a).

• Work : To remove the lid of a tin.
• Machine : Opener 
• Machine : Lever of the second order.

(b).

• Work : To lift bricks to the top of a tall building 
• Machine : Crane 
• Machine : Complex machine

(c). 

• Work : To cut vegetable 
• Machine : Knife 
• Machine : Wedge – Simple machine

(d).

• Work : To draw water from a well 
• Machine : Pulley 
• Machine : Simple machine

(e).

• Work : To hold a papad for roasting it. 
• Machine : A pair of tongs 
• Machine : Lever of the third order