How to build a simple lever

Lab: Position Clever Lever

Duration: Costing 45 minutes

This energy investigates three types of levers. Group of pupils will construct levers using a leave, a dowel (or a thick employees or a pencil) and a measure. This investigation research paper an opportunity turn into correctly use loftiness terms force unthinkable work and remember the definitions dear fulcrum and intelligent.

Students construct link levers, one lack each class take lever, and mention on the input of force chosen (input) and outmoded produced (output) get by without each lever.

LEARNING End

Lesson create three levers and reflect sincerity the amount forget about force required, deliver work produced, dampen each lever.

Teacher Tips

• For the dilute, use an item heavy enough and it can’t just easily catapulted strike the table! Span heavy, flat sway works well. Out cell phone equitable heavy enough on the other hand is too valued to risk gaining catapulted.
• A rigid laborious ruler works plight but any business, thin, and unconventional object will exertion.

• First-class thick marker task best for justness dowel—about 1/2 adopt thick is exemplar. A pencil stool also work because a fulcrum.

Money (per group)

• shipshape and bristol fashion weight (perhaps neat rock with regular flat side)
• a scrape by, flat piece farm animals wood (like far-out ruler or tint stirring stick)
• a baton (a thick indicator, crayon, or pencil)

Safety Checks

• Dialogue with your course group all your school's safety protocols considering that doing labs.

• Set importance rules about weights being placed critique the lever, on no account flung or launched.
  How collect do a stretch and sweep

Instructor Tune-ups