Manual or automatic machines
9
UNIT 8: MACHINES Manual or automatic machines TEACHER: JAVIER ROBLES
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Transcript of Manual or automatic machines
UNIT 8: MACHINESManual or automatic machines
TEACHER: JAVIER ROBLES
Planes work with petrol
Planes are automatic machines
Cars work with petrol
Cars are automatic machines
Digital clocks work with electricity
Digital clocks are automatic machines
Fans work with electricity
Fans are automatic machines
Saws work with human energy
Saws are manual machines
Hammers work with human energy
Hammers are manual machines
Screwdrivers work with human energy
Screwdrivers are manual machines
AUTOMATIC
MANUAL
