Early Farm Power
What Is Power?
The ability to do work.
What three things does a steam engine use to create power?
Heat, water, and pressure.
Name one machine commonly powered by steam.
Examples: threshing machine, sawmill, corn sheller, feed mill, or grain-processing equipment.
What does internal combustion mean?
Fuel burns inside the engine.
Who developed an early successful gasoline tractor in 1892?
John Froelich.
What was the first source of agricultural power?
Human power.
What is water heated inside of in a steam engine?
A boiler.
How did early portable steam engines usually move from farm to farm?
They were usually transported by horses.
What was one advantage of gasoline engines over steam?
Smaller, lighter, faster to start, easier to operate, or didn't need large amounts of water.
What company was formed by Charles Hart and Charles Parr?
Hart-Parr Company.
Name two animals commonly used for farm power.
Horses, mules, and/or oxen.
Complete the process: Heat → Steam → Pressure → _____.
Movement.
What device transferred power from a steam engine to another machine?
A Belt
Where was John Froelich's tractor built?
Iowa
In what year was the Hart-Parr Company formed?
1901.
What was the major limitation of wind power?
It depended on weather conditions.
Who improved the efficiency of the steam engine?
James Watt.
What was a self-propelled steam engine called?
A steam traction engine.
What farm machine did Froelich's tractor help power?
A threshing machine.
What does the word “tractor” describe?
A machine designed to provide pulling power.
Give one limitation for human, animal, wind, and water power.
Human: limited strength; Animal: required food, care, and rest; Wind: depended on weather; Water: depended on location.
Name three disadvantages of steam power.
Any three: extremely heavy, needed large amounts of water, needed wood or coal, slow to build pressure, required skilled operators, boiler failures could be dangerous.
Give two ways steam power improved threshing.
More grain could be processed, work was completed faster, and less manual labor was required.
Name three problems early gasoline tractors still had.
Any three: large/heavy, expensive, difficult to maintain, unreliable, steel wheels, difficult in some field conditions.
Who invented the Model F
Henry Ford