Welcome to LEGO EnergyMathematics & Science Center

Simple Machines

Compound Machine

• Made of 2 or more simple machines

• Also known as a complex machine

• Made of 2 or more simple machines

• Also known as a complex machine

Work

Work

• Force is applied over a distance

• Force is a “push” or “pull”

• Use math to calculate• Work =

Force x Distance

Energy

• Ability to do work• Different kinds of

energy

Electricity

Mechanical

Light

Sound

etc.

Computer Workstation

Computer Workstation

• Computer runs the ROBOLAB software

Computer Workstation

• Mouse is used to move the cursor

Computer Workstation

• Mouse is used to move the cursor

Computer Workstation

• Monitor displays icons

• Icons are pictures of an object on the screen

Remote Control Car

• Gray cube is a motor

• Motor uses electrical energy to move

• Gray cube is a motor

• Motor uses electrical energy to move

Remote Control Car

• Yellow BRICK is an RCX Brick

• Contains a computer• Uses electrical energy

to run• Controls the car when

we finish programming it

Assembly of Remote Control Car

Assembly of Remote Control Car

• Gears

Assembly of Remote Control Car

• Gears• Mount Motor

Assembly of Remote Control Car

• Gears• Mount Motor• Mount RCX Brick

• Gears• Mount Motor• Mount RCX Brick

Electricity• Conductor – carries an

electric current

• Insulator – does not carry an electric current

Types of Energy

• Potential – energy of position

• Kinetic – energy of movement

• Potential – energy of position

• Kinetic – energy of movement

Recap

• Work

= Force x Distance

Recap

• Work

= Force x Distance• Energy is capacity to

do work

Recap

• Work

= Force x Distance• Energy is capacity to

do work• RCX Brick will

release the same amount of energy each time

Will the car always go the same distance?

Experiment

Parts of an Experiment

Manipulated variable – What YOU change

Parts of an Experiment

Manipulated variable – What YOU change

Responding variable –

What changes on own

Parts of an Experiment

Manipulated variable – What YOU change

Responding variable –

What changes on own

Constants – things that stay the same

Hypothesis

• Educated guess• If (change

manipulative variable) then (change responding variable)

• If car travels on _____ then the car will _____

Experimental Data

0

5

10

15

20

25

30

35

J an Feb Mar Apr May J un

Food

Gas

Motel