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12 Cards in this Set

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WORK

Historically when and where did farmers use a sickle made of bone with flint teeth to cut their crops?
In Jordan about 6000BC
WORK

In what year did fishermen near the Black Sea in the region of Yugoslavia area use fishhooks to catch their food?
4500BC
Name six basic tools
Inclined plane, wedge, screw, lever, wheel and axle, and pulley.
FRICTION

Hunters used stone spearheads attached to wooden shafts at what time and where?
6000 B.C. France
WEDGES

What are some common wedges that are used every day.
Some common wedges are knives, scissors, and doorstops.
TOOLS

What is mechanical advantage?
The amount of work we save by using a tool.
TOOLS

What is the formula for Mechanical Advantage?
MA = Output force/
Input force
INCLINED PLANE


The inclined plane ______________
force so that we can do work that we otherwise could not do.
magnifies
ARCHIMEDES *************

How did Archimedes determine how much gold had been stolen? What is the term for this?
displacement
TOOLS **********************

Define technology. There are three parts to this definition.
Technology is the art and science of making things useful in our everyday lives. It includes the use of tools, machines, and materials to help us live and work efficiently.
TOOLS
When did farmers use ox-drawn plows to till soil on their Roman Empire farms?
250 AD
INCLINED PLANE

Around what time were ladders used in Jericho to make climbing to a house’s roof easier?
6000BC