Momentum and impulse

Interactive lesson
More mass, harder to stopInteractive lesson
More speed, harder to stopInteractive lesson
Momentum is mass times velocityInteractive lesson
Why momentum measures stopping difficultyInteractive lesson
The unit of momentumInteractive lesson
Momentum is a vectorInteractive lesson
Calculate the momentumInteractive lesson
Find the velocity from the momentumInteractive lesson
Find the mass from the momentum

Impulse and momentum change

Interactive lesson
Signs for momentum along a lineInteractive lesson
Greater force, greater momentum gainInteractive lesson
Longer push, greater momentum gainInteractive lesson
Impulse is force times timeInteractive lesson
The unit of impulseInteractive lesson
Impulse is a vectorInteractive lesson
Calculate the impulseInteractive lesson
Impulse from a force-time graphInteractive lesson
Find the momentum change

Newton's second law in momentum form, and collision safety

Interactive lesson
Longer stop, gentler forceInteractive lesson
Newton's second law in momentum formInteractive lesson
Why the two forms of the second law agreeInteractive lesson
The momentum form is the more general lawInteractive lesson
The impulse-momentum theoremInteractive lesson
Why impulse equals the momentum changeInteractive lesson
Newton-seconds are kilogram-meters per secondInteractive lesson
From force and time to the final velocityInteractive lesson
Find the average forceInteractive lesson
Find the time the force must actInteractive lesson
What a collision isInteractive lesson
How airbags and crumple zones protectInteractive lesson
Judge the gentler designInteractive lesson
Safety-feature force comparison

Conservation of momentum and collisions

Interactive lesson
What a system isInteractive lesson
Internal or external forceInteractive lesson
Total momentum of a systemInteractive lesson
What conserved meansInteractive lesson
Judge conservation from the dataInteractive lesson
The law of conservation of momentumInteractive lesson
Separations obey the same lawInteractive lesson
Why momentum is conservedInteractive lesson
Is momentum conserved here?Interactive lesson
Elastic collisionInteractive lesson
Inelastic collisionInteractive lesson
Perfectly inelastic collisionInteractive lesson
Momentum survives both; kinetic energy only one

Collision calculations in one and two dimensions

Interactive lesson
Classify the collisionInteractive lesson
Set up the conservation equationInteractive lesson
Stick-together final velocityInteractive lesson
Find the other final velocityInteractive lesson
Find the recoil velocityInteractive lesson
Find the unknown massInteractive lesson
Work back to the initial velocityInteractive lesson
Spot the flaw in the setupInteractive lesson
Full one-dimensional collision analysisInteractive lesson
Conservation works direction by directionInteractive lesson
Which way after a two-dimensional collisionInteractive lesson
Right-angle sticking collision