__NEW APPROACH__

WEEK/TERM: __THIRD TERM/WEEK 6__

DATE: 05.05.2020

CLASS: J.S.S 2

SUBJECT: PHYSICS

TOPIC: REVIEW ON POSITION (distance and displacement and vectors and scalar quantities)

REFERENCE:

**BRIEF EXPLANATION:**

**Notes for the students (lesson one)**

**POSITION **

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**

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**

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.

More examples

- A boy walked a distance of 2km. = distance
- A boy walked a distance of 5km due east = displacement

**Lesson two**

**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.

**Vectors**

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) | |

i. | Position | |

Ii | Displacement | |

Iii | Distance | |

Iv | Time | |

v | Length | |

vi | Force |