Science Newtons Laws

27 terms

Force

a push/pull on an object

Matter

anything with mass that takes up space

Mass

amount of matter in an object

Weight

force of gravity on an object at the surface of a planet

Friction

force that one surface exerts on another when the two surfaces rub against each other

Gravity

force that pulls object towards towards each other

result=no motion

result=motion

Inertia

tendency for an object to resist a change in motion aka Newton's First Law

Newton's First Law

Inertia; an object at rest tends to stay at rest and an object in motion tends to stay in motion at a constant speed in a straight line until another force acts upon it

d/t

Velocity

speed in a given direction

Acceleration

change in velocity

a=Vf-Vi/t

Newton's 2nd Law

How fast an object speeds up or slows down depends on the amount of force used and its mass

f=ma

m=f/a

Motion

describes when distance from another object is changing

Reference Point

place/object used for comparison to show if an object is moving

Projectile

object that is thrown

Projectile Motion

If you throw a ball horizontally, it will land on the ground at the same time as an object that is dropped

Circular Motion

Objects traveling in a circle are constantly accelerating (constantly changing in direction) and in order to do this a force must be applied

Centripetal Force

any force that causes an object to move in a circular path

Reference Point

place/object used for comparison to determine movement

Centrifugal Force

describe as a "resultant, secondary, or in-direct" force because it doesn't exist in all reference frames

Satellite Motion

faster you throw a projectile, the farther it lands

ac=v2/r