Doorknobs Physics Worksheet
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STUDENT RESOURCE 6.3
Doorknobs
HOMEWORK SHEET
1
Keep the door open when you try this.
2
Ask an adult to help you.
3
Turn the doorknob to see how much force it
takes to move the latch.
4
Ask an adult to take off the doorknob. Try
turning the rod inside without the knob.
5
Label the wheel and axle in this picture of a
doorknob.
FORCES, MOTION, AND MACHINES • SECTION 6 WHEELS AND AXLES AND GEARS
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