SECTION 5A

QOD

• What person modified Archimedes first writings on forces 1800 years later

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FORCES FACTS

• Forces are sometimes a push or a pull
• The pull could be gravity pulling down on a object or a physical force pulls it down
• A push could be a contact force or a field force
• Contact forces involve direct contact while Field forces are not usually in contact with a object
• Gravity affects almost all objects on the ground ,in water ,and in the air

QUESTIONS

• Who was the first to write about forces?
• What are the 2 types of forces that can act on a object
• What is one force that affects all objects
• What person was the first to learn and write about Gravity ( who is not Galileo)
• What was Galileo's experiment that challenged the law of gravity at his time