Momentum and Impulse

Physical Science Grade 12

Created bySue Peru

Last updated 8/2023

English

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What you'll learn

Define and calculate momentum
Define and demonstrate impulse
Define and apply the law of conservation of momentum
Distinguish between elastic and inelastic collisions

Course content

3 sections • 13 lectures • 2h 38m total length

Welcome0:59
Explore physical science with momentum and impulse, using engaging formulas and methods learned together, turning physics from boring into exciting and challenging adventure.

Direction8:52
Explore how direction uses cardinal and intercardinal points, then refine location with angles relative to north or east axis, illustrated by 30 degrees north east and 60 degrees north east.
Gravity4:12
Explore gravity as the earth's attractive force that gives objects weight and causes downward acceleration, with weight related to mass via w = m g at 9.8 m/s^2.
The Tail-to-head Method15:15
Use the tail-to-head method to find the resultant of two or more vectors and to resolve vectors into their x and y components, applying triangles and trigonometry.

Momentum and Impulse14:43
Explore momentum as mass times velocity and its persistence after the initial force, and define impulse as force times time, linked to rate of momentum change by Newton's second law.
Law of conservation of momentum6:30
Explore the law of conservation of momentum in collisions within a closed system, comparing elastic and inelastic types and noting how momentum and kinetic energy behave.
Scenario 118:26
apply momentum conservation to two colliding objects, using masses and before-and-after velocities to solve for unknown after-collision speeds, with sign conventions for east and west.
Scenario 1 - Further examples11:53
Analyze momentum before and after collisions in two-object scenarios to determine the initial velocity. Apply conservation of momentum to solve for unknown speeds from given masses and final states.
Scenario 214:18
Use the momentum conservation law in scenario two to find the shared velocity after collision.
Scenario 316:24
Apply momentum conservation to joined-before, separated-after collisions using a common before velocity. Show 3 kg and 6.5 kg, and 8 kg and 16 kg cases with resulting post-collision speeds.
Scenario 411:06
Apply momentum conservation in scenario 4, where joined, stationary objects explode apart; calculate recoil velocity from muzzle velocity, e.g., 0.4 m/s and 0.6 m/s backward for gun-bullet cases.
Scenario 513:38
Apply conservation of linear momentum in horizontal plane to find the common velocity after a vertical drop colliding with a moving object, illustrated with before-and-after scenarios.
Elastic and Inelastic Collisions22:05
Distinguish elastic from inelastic collisions by comparing kinetic energy before and after, and explore impulse and stopping time to show how airbags and crumple zones reduce crash forces.

Requirements

Basic physical science and basic mathematics

Description

This course is ideal for purchase by parents with kids who are taking Physical Science in the final year of high school.

Physical Science is a student's gateway to the world; an eye-opener into the way everything works and fits together in the universe.

Give your child a journey through time into the world of the fathers of science like Sir Isaac Newton and Galileo. Physics takes us through a time when the workings of the world were being discovered and then brings us back to the myriad of opportunities in our generation, for discovery. There is much to learn and uncover in the world and physics gives us the upper hand.

This is an exciting course that explores how forces can create momentum to enable objects to continue moving after the force has been released. It will help learners understand momentum and impulse in a simple way.

The definition and explanation behind momentum will be looked at. The variables involved in the momentum of objects will be defined and related calculations, undertaken.

The definition and explanation behind impulse and its effect on collisions will be investigated.

We will explore the various scenarios that arise from the collision of bodies.

The effect of collisions on the kinetic energy of systems will be investigated.

The two types of collisions will be looked at.

The world of Physics awaits. A world of adventure and discovery.

Take advantage of this course, which breaks down momentum and impulse into simple concepts that your child can absorb easily. Make physics fun and easy for your child. Give your child the gift of physics and the advantage of breezing through physical science.

Who this course is for:

Parents with kids who are in their final year of school i.e. grade 12 and are taking Physical Science will find that this course makes Physics simple to understand

Momentum and Impulse

What you'll learn

Explore related topics

Course content

Welcome1 lecture • 1min

Introduction3 lectures • 28min