1 - 10 van 12 bronnen weergeven

Average velocity and speed worked example

Solving a word problem to find average velocity and speed of an object in one-dimension.

Onderwerp en thema
Form 2
Physics
Motion in a straight line
Speed and velocity
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2018
Schepper/Auteur
Sal Khan
Trefwoord
Velocity
Speed
One dimensional motion

Calculations on motion in one dimension

In this unit you will apply your understanding of the components of motion in one dimension using linear equations. This will help you to solve problems about motion in one direction and equip you to understand how these concepts apply to everyday life.

There are three equations for linear motion with constant acceleration. They can be used to calculate, and therefore predict, the outcome of motion when three out of the four variables are known.

Onderwerp en thema
Form 2
Physics
Motion in a straight line
Speed and velocity
Type bron
Werkbladen en klassikale activiteiten
Taal
English
Uitgever
Department of Higher Education
Publicatiedatum
No date
Schepper/Auteur
Leigh Kleynhans
Deelnemer
Michael Atkinson
Trefwoord
Motion
Initial Velocity
Final Velocity
Acceleration

Effects of different wavelengths of radiation

When electromagnetic radiation is absorbed by a material the energy it carries has to go somewhere. When lower energy waves, like radio and infrared waves, are absorbed there can be an increase in temperature of the absorbing material. Higher energy waves, like x-ray and gamma waves, can actually permanently damage or change materials. Learn about the different types of electromagnetic waves and how their energies can influence their effects on objects.

Onderwerp en thema
Form 1
Physics
Waves
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2021
Schepper/Auteur
Sal Khan
Trefwoord
Electromagnetic Radiation
Wavelength
electromagnetic waves

Inclined plane force components

Explore the various forces acting on a block sitting on an inclined plane. Learn how to break the force of gravity into two components - one perpendicular to the ramp and one parallel to the ramp. Finally, using geometry and trigonometry, learn how to calculate the magnitude of each component of force that is acting on the block.

Onderwerp en thema
Form 2
Physics
Motion in a straight line
Speed and velocity
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2011
Schepper/Auteur
Sal Khan
Trefwoord
Inclined plane
Force
Work

Instantaneous speed and velocity

Instantaneous speed is a measurement of how fast an object is moving at that particular moment. Instantaneous velocity is a vector quantity that includes both the speed and the direction in which the object is moving. Learn how to find an object’s instantaneous speed or velocity in three ways - by using calculus, by looking at the slope of a given point on a graph of an object’s rate vs. time, or by using kinematic formulas if the object’s acceleration is constant. 

Onderwerp en thema
Form 2
Physics
Motion in a straight line
Speed and velocity
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2013
Schepper/Auteur
David SantoPietro
Trefwoord
Speed
Velocity

Logarithms

In this course you will learn:

  1. What logarithms are.
  2. How to apply the log laws.
  3. How to simplify logs.
  4. How to solve log equations.
Onderwerp en thema
Form 2
Mathematics
Logarithms
Laws of logarithms
Type bron
Cursus
Taal
English
Publicatiedatum
2023

Optimal angle for a projectile part 1: Components of initial velocity

You want a projectile to fly as far as possible, at which angle should you launch it? We'll start with formulas for the initial velocity.

Onderwerp en thema
Form 2
Physics
Motion in a straight line
Speed and velocity
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2011
Schepper/Auteur
Sal Khan
Trefwoord
Initial Velocity
Projectile motion
Speed

Projectile at an angle

Figuring out the horizontal displacement for a projectile launched at an angle.

Onderwerp en thema
Form 2
Physics
Motion in a straight line
Speed and velocity
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2011
Schepper/Auteur
Sal Khan
Trefwoord
Projectile motion
Velocity
Speed
Motion
two dimensional motion

Wave interference

An explanation of wave interference and solution of a few examples to find the value of the total wave when two wave pulses overlap

Onderwerp en thema
Form 1
Physics
Waves
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2016
Schepper/Auteur
David SantoPietro
Trefwoord
Waves
Wavelength
Wave Interference
Mechanical Waves
Mechanical Sounds

Wave Properties

The wavelength and frequency of a wave are related to one another by the speed of travel of the wave, which depends on the type of wave and the medium through which it is passing.

Onderwerp en thema
Form 1
Physics
Waves
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2021
Schepper/Auteur
Khan Academy
Trefwoord
Waves
Wavelength