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10 - Phys Science

Unit 2: Forces

QuestionAnswer
What type of force: Fg (Gravity) Always present
What type of force: Fs (Spring) Force from compressed/stretched spring
What type of force: Ft (Tension) Force from string, rope, wire, cable, etc.
What type of force: Ff (friction) Two surfaces sliding across each other
What type of force: F(air) (air) Object moves through surrounding air
What type of force: Fn (Normal) Results from two surfaces pressing against each other
What type of force: FA (Applied) A person pushing/pulling on an object
A ___ is a push or a pull resulting from the object's interaction with another object. force
Force is what type of quantity? vector
If the net force is zero, the object will stay at rest
Forces can be used to increase or decrease the speed of an object or to change the __________ an object is moving. direction
What is the property of an object that resists changes in motion? Inertia
Objects with more mass have more inertia and are _____ resistant to changes in ther motion. more
A _____ is the amount of force need to accelerate a 1kg object by 1m/s. newton
____________ forces cause changes in speed, direction, or both. unbalanced
If there is NO accelration, the net force MUST be zero
Newton's third law tells us that any time two objects hit each other, they EXERT _______ and opposite forces on each other equal
_______________ is the mass of a an object times its velocity momentum
The law of ______________ of momentum states that as long as the interacting objects are not influenced by outside sources, the total amount of momentum is constant or does not change. conservation
Created by: SummitHS
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