IB Physics A2 Definitions
This page contains our IB Physics definitions for A2. By learning each one of these definitions, you will fully cover the content for IB Physics 'Forces & momentum'.
Angular velocity
It is the angle travelled per unit time
Centripetal acceleration
It is the acceleration of an object towards the center of the circle during uniform circular motion
Centripetal force
It is the force that causes centripetal acceleration
dynamic friction
The force exerted to stop a moving surface from moving
electrostatic force
The force between two electrically charged objects
equilibrium
The state of all forces on an object being balanced and cancelling out to zero
friction force
The force a surface parallely exerts to counteract another surface's motion
gravitational force
It is the attractive force exerted by an object's mass on another object
impulse
It is the change of momentum
magnetic force
The force between two magnetic objects
momentum
It is the product of mass and velocity
Period
It is the time required to complete one rotation
reaction force
The force a surface perpendicularly exerts on an object due to its weight
static friction
The force exerted to stop another resting surface from moving
tension force
The force a spring, rope, or cable exerts along its length in both directions to another object
Uniform circular motion
The motion of an object in a circle at a constant speed
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