robo

Tele-Robotics Project

www.physicslessons.com/robo.htm

Goal: Given materials and tools, the team of 3 or 4 students will learn and apply the Math, Science and Technology skills and concepts needed to engineer, design and build a remote controlled robot that will compete in a competition.

Objectives:

The team will engineer, design and build an electrical control system for a robot.

The team will engineer, design and build a remote-controlled electrical/mechanical robot for competition.

Materials Given:

4 dc motors (0 to 6 V)

2 axles

2 flashlights with batteries

1 rat trap

5 gears (rack and pinion, worm)

4 wheels

2 dpdt switches

2 spst switches

lego building blocks

¼ inch plywood (6 in. x 12 in.)

4 g of steel wool

4 m of 24 gauge speaker wire

3 aligator/aligator clip wires

Optional Materials:

Fasteners(nail, bolt, staple, etc)

Adhesives(tape, glue)

IC circuits, transistors, capacitors, potentiometers, resistors, diodes

Wood

Fiberglass

Nylon string

Electrical connectors

Grading Rubric (physics)

A. Electrical Control System – 10 points

Functional Control system for 4 devices	11/10
Functional Control system for 3 devices	10/10
Functional Control system for 2 devices	8/10
for 1 devices	6/10
Non- Functional Control system	4/10
No Control system	0/10

B. Schematic Diagram of Control System – 10 pts

Diagram shows all electrical elements – source, load, path, control	10/10
Diagram missing one element	8/10
Diagram missing two elements	6/10
Diagram missing three elements	4/10
Diagram missing all elements	0/10

C. Spec Sheet – 10 pts

Image of 1.robot, 2.control panel, 3.engineering team and 4. 8 specifications(table)	10/10
Missing one element	8/10
Missing two	6/10
Missing three	4/10
Missing entire spec sheet	0/10

The Contest

The robots will compete in a tournament in which one-on-one (one minute battles) to see who can climb to the highest point on a "hill". This will be a "contact" sport in the respect that your robot will be allowed to push, flip or pull the other robot off the "hill". The team that defeats all other teams will earn 5 ec points in physics, and the team that comes in second will earn 2 points ec and the team that comes in 3^rd will earn 1 ec point.

Physics Concepts:

Speed

Acceleration

Force

Momentum

DC circuits

Current pg 450

Voltage pg 432

Resistance (Ohm's law pg 451)

Battery pg 448

Storing electrical energy - capacitor pg 440 -441

Series and parallel circuits

Resistance

Voltage

Current

Ohm’s Law

Angular speed

Linear speed

Torque

Force

Acceleration

Mechanical Advantage

Friction

Center of gravity

Technology Skills and Concepts:

Simulation Software

Computer Aided Design

Gearing

Power transmission

Electrical Connectors

Engineering Process

Teamwork

Math Skills and Concepts

Ratios & proportions

Data collection