Newtons Third Law

SUMMATIVE: 9/17/25

Newtons Third Law

For any action of force, there is going to be a same reaction amount of force or the opposite.

Interacting Objects

Objects that affect one another.

Collide

To hit something with an amount of force.

Newton (N)

A unit used to measure force.

Newtons Law of Inertia

An object in motion, stays in motion. Unless an amount of force acts on it. An object at rest, will stay at rest unless force acts on it.

Inertia

Tendency of an object to resist change in motion. Remains unchanged, (law of lazy).

Force

A push or pull that can change the motion of an object.

Newtons Second Law of Motion

The harder you push something, the faster it speeds up. But if it’s really heavy, it won’t speed up as much.

Balanced Forces

When two or more forces are pushing or pulling on something equally from all sides, so the object doesn’t move or keeps moving at the same speed.

Unbalanced Forces

When two or more forces are not equal, so one side pushes or pulls harder and makes the object start moving, stop, or change direction/motion.

Contact Force

A force that happens when two things are touching each other. EX: like when you push a door.

At-a-distance force

A force that can affect things even when they’re not touching each other.

Spring Scale

Tool used to measure Force (Newtons/N),

Motion

When an object changes its place compared to other things around it over time.

System

What you pick to study the action and reaction forces.