Question

 Classify the following, as levers of first order, second order and third order:
a) Nut-cracker
b) Sea-saw
c) Fire-tongs
d) Wheel barrow
e) Plier
f) Rowing of a boat
g) Bread knife
h) Claw-hammer

Answer 1

Answer:

ᴄʟᴀssɪғʏ ᴛʜᴇ ғᴏʟʟᴏᴡɪɴɢ, ᴀs ʟᴇᴠᴇʀs ᴏғ ғɪʀsᴛ ᴏʀᴅᴇʀ, sᴇᴄᴏɴᴅ ᴏʀᴅᴇʀ ᴀɴᴅ ᴛʜɪʀᴅ ᴏʀᴅᴇʀ:

ᴀ) ɴᴜᴛ-ᴄʀᴀᴄᴋᴇʀ

ʙ) sᴇᴀ-sᴀᴡ

ᴄ) ғɪʀᴇ-ᴛᴏɴɢs

ᴅ) ᴡʜᴇᴇʟ ʙᴀʀʀᴏᴡ

ᴇ) ᴘʟɪᴇʀ

ғ) ʀᴏᴡɪɴɢ ᴏғ ᴀ ʙᴏᴀᴛ

ɢ) ʙʀᴇᴀᴅ ᴋɴɪғᴇ

ʜ) ᴄʟᴀᴡ-ʜᴀᴍᴍᴇʀ