WEEK/TERM: THIRD TERM/WEEK 6
CLASS: J.S.S 2
TOPIC: REVIEW ON POSITION (distance and displacement and vectors and scalar quantities)
Notes for the students (lesson one)
The position of an object is the location in space of that object. It is a vector quantity. It is the distance and direction of an object from a particular reference point.
Distance is a measure of gap an object has moved between two positions in space. It is a scalar quantity. Position is how far an object travelled from one position to another position.
Displacement is the change in the position of an object. Displacement has to do with distance and direction. It is a vector quantity. It is the distance covered by a body in a specified direction.
- A boy walked a distance of 2km. = distance
- A boy walked a distance of 5km due east = displacement
Scalars and vector
Scalar quantities are quantities that have magnitude (size) only. They have no direction. Examples of scalars are distance, time, speed mass, work, energy, power etc.
Vector quantities are those quantities that have both magnitude (size) and directions.
Vectors examples are displacement, force, magnetic field etc.
Exercises / Assignment
- Position is the distance between two points – explain.
- What is the difference between distance and displacement?
- Complete the table below
|Quantity||Types of quantity (vector or scalar)|