# Welcome to the MathScience Innovation Center “LEGO Machines and Energy” and Energy” with Mrs. Kappus.

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Welcome to the MathScience Innovation Center “LEGO Machines and Energy” and Energy” with Mrs. Kappus

SIMPLE MACHINES

b Compound Machine is a machine made of two or more simple machines. a machine made of two or more simple machines.

Remote Controlled MACHINES

SIMPLE MACHINES b Work = Force X Distance

SIMPLE MACHINES b Energy is the ability to do work.is the ability to do work.

LAPTOP COMPUTER b The Laptop Computer runs software: ROBOLABROBOLAB

LAPTOP COMPUTER b The mouse is used to move ____________________

LAPTOP COMPUTER b The mouse is used to move The CURSORThe CURSOR

LAPTOP COMPUTER A Picture of an object on a computer is _____ an ICON

REMOTE CONTROL DEVICE b The Gray Cube is a _____

REMOTE CONTROL DEVICE b The Gray Cube is a. b The Gray Cube is a MOTOR. b The motor uses what type of energy to move? ELECTRICITY

ASSEMBLE REMOTE CONTROL CAR b Mount Motor b Gears

REMOTE CONTROL DEVICE b The Yellow BRICK is an RCX Brick which contains a computer. b The Brick uses what type of energy to run? ELECTRICITY b The RCX Bricks will control the Car when we are done. we are done.

ASSEMBLE REMOTE CONTROL CAR b Mount Motor b Gears b Mount RCX Brick b Test Car with Program #1

RECAP b WORK = Force x Distance b ENERGY is the ability to do work b Energy can be potential or kinetic b The Brick will release the same energy every time doing the same work every timedoing the same work every time b Will the car always go the same distance?

Experiment b Begin with a question. b Will the car travel farther on the track or on the carpet surface?

EXPERIMENT b Hypothesis

EXPERIMENT b Hypothesis-An educated guess or a prediction

EXPERIMENT b Hypothesis b The car will travel farther on the ________.

EXPERIMENT b Hypothesis b Constant

EXPERIMENT Constant-parts of the experiment that stay the sameConstant-parts of the experiment that stay the same

EXPERIMENT b Hypothesis b Constant b Variable

EXPERIMENT Variable-the factors in an experiment that change.Variable-the factors in an experiment that change.

Mechanical Advantage Diagram used with permission from: EngQuest2010 and Engineers Australia

Towing the load without a simple machine

Towing the load with a pulley

Force investigation

skateboard

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