Unit 11. Objects and machines
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Unit 11. Objects and machines
Transcript of Unit 11. Objects and machines
Unit 11. Objects and machines
How do machines work?
Computers
webcam
printer
mousekeyboard
CPU
Be careful and safe energy
Never use machines near water
Never try to open a machine if it is plugged in.
Never plug in a machine if your hands are wet.
Never plug in too many machines at the same time.
Parts of objects
Forces: push and pull
