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Approximations

Outcomes

In this lesson you will learn about:

  1. Rounding off numbers.
  2. Estimating answers to calculations.
Onderwerp en thema
Form 1
Mathematics
Approximations
Approximations in calculations
Type bron
Cursus
Taal
English
Publicatiedatum
2023

Approximations and Estimations

This YouTube video explores the concepts of approximations and estimations.

Onderwerp en thema
Form 1
Mathematics
Approximations
Approximations in calculations
Type bron
Video
Taal
English
Uitgever
FuseSchool Global Education
Publicatiedatum
2020
Schepper/Auteur
FuseSchool Global Education
Trefwoord
Approximations
Estimations

The concept of mechanical advantage

The amount of effort saved when using machines is called mechanical advantage (MA). Simple machines use mechanical advantage as a key property to their functionality, helping humans perform tasks that would require more force than a person could produce. We will use the lever as an example of a simple machine to illustrate the concept of mechanical advantage.

Onderwerp en thema
Form 2
Physics
Simple machines
Concept of simple machines
Type bron
Werkbladen en klassikale activiteiten
Taal
English
Uitgever
Department of Higher Education
Publicatiedatum
No date
Schepper/Auteur
Leigh Kleynhans
Deelnemer
Michael Atkinson
Trefwoord
Effort Force
Resistance Force
Mechanical Advantage

Eating & Exercise

Outcomes:

  • Design a diet and exercise regimen.
  • Estimate the number of calories required for basic survival.
  • Estimate the number of calories burned by exercise.
  • Explain how heart health depends on diet and exercise.
  • Explain how Body Mass Index (BMI) depends on weight and height.
Onderwerp en thema
Form 2
Biology
Nutrition
Nutrition and food nutrient concepts
Type bron
Simulatie
Taal
English
Uitgever
pHET Interactive Simulations
Publicatiedatum
No date
Schepper/Auteur
Sam Reid (Developer)
Trefwoord
Biology
Exercise
Energy

Mechanical advantage of simple machines

In this unit we will learn how these factors can affect the output of a simple machine. We will also learn about the difference between ideal mechanical advantage (IMA) and actual mechanical advantage (AMA), and how to apply your knowledge to calculate the efficiency of various simple machines.

Onderwerp en thema
Form 2
Physics
Simple machines
Concept of simple machines
Type bron
Studieboeken
Taal
English
Uitgever
Department of Higher Education
Publicatiedatum
No date
Schepper/Auteur
Leigh Kleynhans
Deelnemer
Michael Atkinson
Trefwoord
Lever
Inclined plane
Vectors
Effort Force

More on Newton's third law

An elaboration on some of the common misconceptions in dealing with Newton's Third Law. He also shows how to correctly and reliably identify Third Law force pairs.

Onderwerp en thema
Form 2
Physics
Newton's law of motion
3rd law of motion
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2016
Schepper/Auteur
David SantoPietro
Trefwoord
Third Law of Motion
Laws of motion
Newton

Newton's third law of motion

Learn about Newton's third law of motion, which states that for every action there is an equal and opposite reaction. Look at multiple examples that illustrate this law, including pushing a block on ice, pushing against a desk, walking on sand, how rockets work, and how an astronaut could save themselves from drifting in space.

Onderwerp en thema
Form 2
Physics
Newton's law of motion
3rd law of motion
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2012
Schepper/Auteur
Sal Khan
Trefwoord
Third Law of Motion
Laws of motion
Motion
Newton

Rounding Numbers: Online Activity

This online activity is a math game on rounding numbers. 

Onderwerp en thema
Form 1
Mathematics
Approximations
Rounding off numbers
Type bron
Werkbladen en klassikale activiteiten
Taal
English
Uitgever
GeoGebra
Publicatiedatum
2014
Schepper/Auteur
Σταμάτης Μακρής
Trefwoord
Rounding whole numbers
Whole numbers

Rounding Whole Numbers: Online Activity

This is an online activity that provides you with various exercises on rounding whole numbers.

Onderwerp en thema
Form 1
Mathematics
Approximations
Rounding off numbers
Type bron
Werkbladen en klassikale activiteiten
Taal
English
Uitgever
GeoGebra
Publicatiedatum
2014
Schepper/Auteur
Austen Meek
Trefwoord
Whole numbers
Rounding whole numbers

Simple Machines

In this lesson you will learn about:

  • Simple machines
  • Be able to identify different kinds of machines
  • Identify classes of levers and pulleys
  • Determine mechanical advantage of a lever and pulleys
  • Understand and determine the advantage of an inclined plane
  • Describe and determine the advantage of a screw jack
  • Describe and determine the advantage of a wheel and axel
  • Describe and determine the advantage of a hydraulic press

 

 

Onderwerp en thema
Form 2
Physics
Simple machines
Type bron
Cursus
Taal
English
Publicatiedatum
2023