Simple MachinesMelissa Stanley

EDU 290 Tues/Thurs. 12:30-1:45

1. Makes work easier

2. Changes an objects direction

3. Makes work faster(Jones 8)

LEVER

SCREW

INCLINED PLANE

PULLEY

WHEEL AND AXLE

WEDGE https://www.glastonburyus.org/staff/TRUITTN/science/Pages/default.aspx

Wheels help objects travel faster and move farther

Can you name good example of when you use wheels and an axle?

http://www.rottnestexpress.com.au/thingstoseeanddo/bikehire.aspx

http://blogs.riverfronttimes.com/therundown/2008/12/last_minute_gifts_for_chris_duncan_richie_incognito_jim_haslett_albert_pujols_gary_pinkel_rick_majerus.php

Plane: a flat level or surface (Dictionary.com)

Inclined Plane: any plane that has one end higher than the other (Jones 14)

http://static.howstuffworks.com/gif/water-slide-5.jpg

http://www.swe.org/iac/images/Inclined_lift_rock_lg.jpg

Really an inclined plane turned on its side (Jones 32)

Something that serves to part, split, divide, etc. (Dictionary.com)

Examples: knife, shovel, tip of a nail, or an ax.

http://www.learnersdictionary.com/art/ld/wedge_rev.gif

http://www.allproducts.com/manufacture97/andywire/product2.jpg

o A pulley is a simple machine that uses grooved wheels and a rope to raise, lower or move a load (mikids.com)

o Examples: Raising a flag, drawbridge, and a ski lift.

http://patshillbillycreations.com/index.php?currency=EUR&osCsid=5c3b2eea8edd84f15eccefc27f3d9bc2

http://www.accesshealth.com

A screw moves things faster and easier (Jones 48)

Good examples are a drill bit, an auger and a wood screw.

Some jobs that use a screw are a carpenter, well driller, a farmer, etc.

http://www.airforwinners.com/EN/press_room-image_download-oil_injected_screw.html

http://www.asiagrace.com/kashmir/carpenter.php

o A lever is a stiff bar that rests on a support called a fulcrum which lifts or moves loads (mikids.com)

Can you name a good example of a lever?

1. Shovel

1. Teeter totter

3. Hammer

http://hisksblog.wordpress.com/

http://mediamatters.org/research/200812150011

Of course!!!

Classroom, kitchen, playground, garage, even the bathroom!

Pair & Share Eye Spy(Edinformatics.com)

http://jamblichus.wordpress.com/2009/11/

Compound Machines: A machine with more than one simple machine (Jones 57)

Example: Pair of scissors Scissors= wedge and lever

Can do more difficult jobs

http://www.boston.com/ae/theater_arts/exhibitionist/2009/12/cuts_at_the_pea.html

"Dictionary.com An ask.com Service." Dictionary.com. 2010. 28 Feb. 2010. <http://dictionary.reference.com/>.

Gundrum, Carolyn . "Simple Machines." MIKids. 2010. 28 Mar. 2010. <http://www.mikids.com/Smachines.htm>.

Jones, Robert M, and Joyce McLeod, and Gerald Krockover, and Marjorie Frank, and Mozell Lang, and Caroal Valenta, and Barry VanDeman. Science. Orlando: Harcourt Inc., 2002.

  "Math and Science Activity Cetner." Edinformatics. 1999. 27 Feb. 2009. <http://www.edinformatics.com/math_science/simple_machines/wheel_and_axle.htm>.

Images with help from Google Images. Websites under each pictures for credit.