angular acceleration
Spin rate change
Angular acceleration is the rate at which an object's rotational speed changes over time, measured in radians per second squared.
Just as linear acceleration describes how quickly something speeds up or slows down in a straight line, angular acceleration describes the same for spinning or rotating motion.
A figure skater pulling her arms in experiences angular acceleration as her spin quickens.
The concept is fundamental in physics and engineering for analyzing rotating machinery, planetary motion, and anything that turns.
Rotational force measurement
- moment of inertiaResistance to angular acceleration
- rigid bodyIdealized undeformable object
- Newton's second lawForce-motion mathematical principle
- conservation lawsQuantities unchanged through time
mass distribution · centripetal force · centrifugal force · inertia · momentum · impulse · mechanical energy · precession
Spinning disc measuring orientation
- flywheelRotational energy storage device
- pendulumSuspended swinging weight
- turntableRotating music player
- centrifugeSpinning density-separation device
rotor · crankshaft · camshaft · gear ratio · pulley · spindle · axle · bearing
Travel along curved path
- rotational motionMovement around a center
- arc lengthCurved segment's measure
- periodPunctuation ending sentences
- frequencyRate of recurrence
Tool for turning fasteners
- leverPivoting bar for lifting
- fulcrumLever's balance point
- newton-meterUnit of torque
- tightenMake more secure
loosen · ratchet · torque wrench · screwdriver · spanner · dynamometer · clutch · servomechanism
torque
Rotational force measurement
- moment of inertiaResistance to angular acceleration
- rigid bodyIdealized undeformable object
- Newton's second lawForce-motion mathematical principle
conservation laws · mass distribution · centripetal force · centrifugal force · inertia · momentum · impulse · mechanical energy · precession · nutation
gyroscope
Spinning disc measuring orientation
- flywheelRotational energy storage device
- pendulumSuspended swinging weight
- turntableRotating music player
centrifuge · rotor · crankshaft · camshaft · gear ratio · pulley · spindle · axle · bearing · pivot
circular motion
Travel along curved path
- rotational motionMovement around a center
- arc lengthCurved segment's measure
- periodPunctuation ending sentences
wrench
Tool for turning fasteners
- leverPivoting bar for lifting
- fulcrumLever's balance point
- newton-meterUnit of torque
tighten · loosen · ratchet · torque wrench · screwdriver · spanner · dynamometer · clutch · servomechanism · mechanical advantage
- motionmotion, movement, velocity, speed, momentum
- accelerationaccelerating, speed up, speeding up, quicken, hasten
- rotationrotation, spin, axis of rotation, rotational motion, revolutions
- rotational motionrotation, pivot, turn, twist, spin
- balance systemvestibular system, inner ear, utricle, saccule, vestibule
- rotational mechanicsmoment of inertia, rotational motion, torque, rotational axis, axis of rotation
angle, angled, accelerate, angles, angular, angling, angler, acceleration, angiogram