Simple Machines part 1 Answer questions on page 56 of your notebook. Take notes on page 57.
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Transcript of Simple Machines part 1 Answer questions on page 56 of your notebook. Take notes on page 57.
Simple Machinespart 1
Answer questions on page 56 of your notebook.
Take notes on page 57.
What goes in the notebook?
• Question 1: Warm-up: List all the machines you have used today before you arrived at this class
• The rest of the questions are in the slide show.
• Your notes should include these words:
• Machine• Work• Joule• Simple machine• Examples of simple
machines• Fulcrum• Input force• Output force
What is a machine?Something that savesyou work.
Doing laundry with no machine
This machine has nopower source
Laundry the modern way
Question 2: Which method of doing laundry requires themost work? Which onerequires the least work?Why do you think so?
What is work?• Work is force per
distance
• Formula: W = F x d
• Units: Joules
• What is a good way to
remember the units?
James Joule
Are jewels free?
NO! You have to WORK for them.
Simple Machines
• Do not have a power source
• Use only one motion
Inclined PlaneQuestion 3:If the force it takes to climb up the ramps is decreased by using an inclined plane,
Then what is increased?
Remember, work = force x distance
The Lever
The force you put into the machine
The force the machine gives you
The stationary point that thelever turns around
Question 4Name the fulcrum, the location of the input force, and the location of the output force on each of these levers, and
how each one can save you work.
A B
CD
See sawCrow bar
Wheel barrowpliers
to be continued…..