Chapter 3 Study guide.

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Presentation transcript:

Chapter 3 Study guide

Gravity: Definition What affects gravity How air resistance and surface area affect the force of gravity What happens to objects when dropped in a vacuum (no air) Free fall means the object is weightless so the force of gravity would be equal on the object and Earth.

Weight: Mass: Definition Units used to measure weight Can it change? Tool used to measure mass Units used to measure mass

Friction: Definition Know the 4 types and what they are (be able to identify by examples) Know that friction produces heat

Pressure: Know what happens to pressure below and above sea level (does it increase? decrease?) Units used to measure pressure Formula for pressure

Buoyancy: Definition Bernoulli’s Principle (what is states and examples) Pascal’s Principle (what it states and examples)

Density: Formula Units What happens when an object is placed in a substance that is more dense and less dense?