VECTORIAL AND ESCALAR MAGNITUDES.
* Activity 1.11 : Vectorial and scalar magnitudes. ( 9/8/17 Friday )
1.11.a Studying scalar and vectorial magnitudes : ( 10 points ).
Magnitude is every property that can be messured, like speed, weight, acceleration, mass, density, electrical conductivity, velocity, force, capacity, volum, etc.
- Some magnitude only need a number or quantity to be defined like the capacity and volum a bottle has, like 30 oz, or 2 liters, etc.
- Another magnitudes, like forces, velocity, etc, need both a number and a direction or vector, because they need to be determined by a direction. We must indicate in which direction, using an arrow, it goes. For instance the velocity and acceleracion a car is having need a vector, but the speed does not because speed is only a number.
MAGNITUDE
Vectorial magnitude example.
1.11.b Speed and velocity ( 5 points ) : ( 9/11/17 Monday )
1.11.b.1 Reviewing test about vectorial and scalar magnitudes. ( 5 points ).
Vectorial and scalar magnitudes outline picture on the whiteboard.
1.11.b.1 FILE
( 9/12/17 Tuesday )
1.11.b.2 Finishing drawings from yesterday. Test-learning activity with the whole group about forces and vectors. ( 5 points ).
1.11.b.1 FILE
1.11.b.2 FILE
( 9/13/17 Wednesday )
1.11.b.3 - Difference between speed ( scalar magnitude ) and velocity , force ( vectorial magnitudes ).
Copy the following outline in your workbook in order to check the difference between the scalar variable of speed and the vectorial one of velocity :
Outline picture from whiteboard about speed and velocity.
Speed has no direction while velocity does. For example, if I say that Im running at 10 mph, I have given you my speed. If I say that Im running 10 mph north, then I have given you my velocity.
The short answer is that velocity is the speed with a direction, while speed does not have a direction. Speed is a scalar quantity -- it is the magnitude of the velocity. Speed is measured in units of distance divided by time, e.g. miles per hour, feet per second, meters per second, etc.
( 9/14/17 Thursday )
1.11.b.3.2 Make the following drawings at your workbook and indicate the forces the cars are doing, their vectors, directions, speed and velocities vectors : ( 10 points ).
TRUE OR FALSE ABOUT FORCES AND SPEED ? : ( 5 points each ).
Speed and velocity questions to answer (true or false).
Speed and velocity 1
Speed and velocity 2
Pointing out the parts of a force activity.
1.11.c Forces, vectorial magnitude. Parts of a force ( 10 points ).
1.11.c.1 Therefore we can say that velocity is a vectorial magnitude and speed is a scalar magnitude. The same about forces, when a force is indicated a vector (arrow) is needed as well as the number or value, so a force is a vectorial magnitude.
( 5 points )
FORCES (Magnitude).
APPLICATION POINT
FORCES ARE MEASURED IN NEWTONS, THAT IS THE UNIT OF A FORCE, AND IT IS MEASURED WITH A DYNAMOMETER.
Dynamometer
A dynamometer or "dyno" for short, is a device for measuring forces.
1.11.c.2 - Parts of a force : ( 5 points ).
Forces parts 1.
Forces parts 2.
Magnitude and direction.
- Exercises about vectors, forces and forces vector parts :
EXERCISES
( 9/15/17 Friday )
- 1.12 Friday activities about forces and its effects ( 20 points ).
National geographic magazines.
b. You can also choose to do these cross and searchwords :
