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Forces and Motion

Forces and Motion: a review of the material from this unit.

QuestionAnswer
What is 'any time an object changes position'? motion
What is 'the TOTAL amount of space covered'? distance
What is 'the measure of the change of position of an object (from start to finish)'? displacement
What is the equation for speed? distance/time
What is 'speed with direction'? velocity
What is Inertia/Newton's First Law of Motion? An object in motion will stay in motion and an object at rest will stay at rest UNLESS an outside force acts upon it.
What is 'any interaction that will (when unopposed) cause a change in motion'? A outside force
What are all of the contact forces that can act on an object? Friction (Ff) Air Drag (Fd) Applied Force (Fa) Normal Force (Fn)
Which contact force is the rubbing/sliding of 2 objects together? It is an opposing force. Friction
Which contact force is any surface that holds an object in place? Examples: the road, the floor, a chair, a table, etc. Normal Force
Which contact force push/pull? Applied Force
What is a force that exerts a force on an object without touching it? Non-contact force
What are the two non-contact forces we have learned about? Magnetism Gravity
What are the diagrams we use to represent the forces acting on an object? Free Body Diagrams
What is the overall/resultant force called? Net Force
What is gravity? An 'inward' force of attraction
What allows a magnet to act on an object without touching it? The magnetic field
All non-contact forces have fields
What is the equation for the gravitational force of attraction F= M1 * M2 ___________ d2 (distance squared)
What affects the force of attraction more, mass or distance? distance
The gravitational force of attraction and mass have a __________ relationship direct
The gravitational force of attraction and distance have a __________ relationship indirect
What 2 things can change the magnetic force of attraction mass and distance
What is the strongest part of a magnet the poles
As the mass doubles, the FOA (Force of Attraction) ________ doubles/increases
As the distance doubles, the FOA (Force of Attraction) ________ decreases to 1/4 of its size/decreases
Gravity's field is the entire... earth
Gravity affects all objects while magnetism affects ONLY objects that have magnetic properties ONLY if they are within the magnetic field
Created by: Joh21574
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