MIAMI-DADE COUNTY PUBLIC SCHOOLS

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PHYSICAL SCIENCE Course Code: 200331001

TOPIC VI: Work and Machines
ESSENTIAL CONTENT / OBJECTIVES / INSTRUCTIONAL TOOLS
A. Develop the concept of Work
B. Observe examples of Work and Power
C. Analyze and synthesize qualitative Work scenarios
D. Identify and build simple machines
1. Types and classes of Simple Machines
a. Levers
b. Pulleys
c. Wheel and Axle
d. Inclined Plane
2. Mechanical Advantage
3. The body as a machine / · Describe the relationship between work and power.
· Infer that work requires energy.
· Calculate work and power in real world situations.
· Differentiate between types of simple machines.
· Determine how simple machines make work easier.
· Calculate the mechanical advantage of simple machines
· Identify simple machines within the human body.
· Research a model of a simple machine and test it for mechanical advantage.
· Compare the mechanical advantage of different simple machines.
· Identify a problem that can be solved by a simple machine and design an experiment to test it. / Core Text Book:
Ch. 8 & 9
Vocabulary: (see p. 2)
work, power, efficiency, mechanical advantage, joule
Technology: (see p. 2)
1. Gizmos
2. Teachersdomain.org
3. Learner.org
SC.912.P.10.3 / Wheel and Axle
Pulley Lab
Ants on a Slant
Inclined Plane - Simple Machines
Standard: SC.912.P.10.1 / / Video / ·  Energy Basics
·  Kinetic and Potential Energy
·  Nuclear Energy
·  Chemical Energy
·  Sound Energy / ·  The Energy of Heat
·  Energy Exchanges
·  Energy Around Us
·  Hoover Dam: Changing Potential Energy into Kinetic Energy / ·  Physics of Fun: Potential and Kinetic Energy
·  Physical Energy Transformations
·  Conservation of Energy and Matter in the Cell Cycle
/ Image / ·  James Prescott Joule, British scientist.
·  J. Robert Oppenheimer (1904-1967). / ·  Nuclear power plant, control room
·  Hydroelectric power plant / ·  Nuclear reactor fuel rods
/ Article / ·  Electricity
·  Radiation / ·  Nuclear Energy
·  Electric Power Systems
Standard: SC.912.P.10.3 / / Video / ·  Work and Energy
·  Work and Weight
·  Work = Force x Distance
·  Definition of Power in Physics
·  Practice Problem Finding Power in Physics Part A / ·  Practice Problem Finding Power in Physics Part B
·  Simple Machines- Greeks
·  Elevators
·  Simple Machines- Egyptians
·  Mechanical Systems: Introduction / ·  Lever and Fulcrum
·  Wheel and Axle
·  Pulley
·  Inclined Plane
·  Piston
·  Simple Machine Review
/ Image / ·  Lever; screwdriver opening paint can
·  Wheel machines
·  Pulleys / ·  Inclined plane on moving truck
·  Screw; vise grip
/ Article / ·  Machine
Standard: SC.912.P.12.2 / / Video / ·  Speed, Velocity, Acceleration, and Deceleration
·  Review: Acceleration
·  Review: Calculating Average Speed / ·  Velocity and Acceleration: Knight Rider Garage
·  Slip 'N Slide Loop
/ Article / ·  Mechanics
/ Video / ·  Sunny Side Up: Engineering Students in Rube Goldberg Competition
·  The Science of Skates
·  Safety Gear
·  British Engineers Help Swimmers Increase Speed
·  Designing Safety Helmets
·  Measuring a Champion
·  Sarah Robles and the Mechanics of Weightlifting
·  Chile Rescuers, Miners Prepare For Rescue
·  TrapTrapped Chilean Miners Rescued One By One ped Miners Days Away from Rescue
·  The Internal Athlete: Cross-Country Skiing

Division of Academics – Department of Science Page 1 of 3

Second Nine Weeks