Welcome great EduPodian, here is your First Term SS2 Physics Lesson Note excerpt.
Scheme of Work
1. Position, distance and displacement.
2. Scalar and vector Quantities¬¬-Concept of scalar and vector quantities, vector representation etc.
3. Derivation of equation of linear motion, Motion under gravity, calculation using these equations.
4. Projectiles and its application.
5. Newton Laws of Motion – Conservation of Linear momentum and collision energy.
6. Equilibrium if Forces – principle of moment, conditions for equilibrium of a Rigid Bodies etc.
7. Equilibrium if Forces – centre of gravity and stability, couple
MID-TERM PROJECT
8. Simple Harmonic Motion- definition, speed, amplitude, displacement, acceleration, etc.
9. Simple Harmonic Motion – Energy of simple harmonic motion and forced vibration, Resonance.
10. Machines – Types and Examples
11. Machines – Calculation.
12. Revision
13. Examination
Week 1:
POSITION, DISTANCE AND DISPLACEMENT
CONTENTS
Position
Distance
Displacement
POSITION
The position of an object in space or on a plane is the point at which the object can be located with reference to a given point (the origin).
DISTANCE
This is a measure of the separation between two points. It has magnitude but no direction. Hence, it is a scalar quantity
DETERMINATION OF DISTANCE BETWEEN TWO POINTS
If two points A and B located in a plane are defined by two ordered pair of values(X1 Y1) and (X2 Y2) or assumed to be in space where they are defined by (X1, Y1, Z1) and (X2, Y2, Z2) the distance between them can be determined by applying this relation.
S=√[(X2-X1)+(Y2-Y)]
OR
S=√[(X2-X1)+(Y2-Y)+(Z2-Z1)]
DISPLACEMENT
Displacement is the distance covered in a specified direction. It is a… Click here to order the complete Physics Lesson Note for SS2 first term
Week 2:
SCALAR AND VECTOR QUANTITIES
CONTENTS
• Concept of scalar and vector quantities
• Vector representation, addition of vectors
• Resolution of vectors and resultant
CONCEPT OF SCALAR AND VECTOR QUANTITIES
Physical quantities are divided into scalar and vector quantities.
A scalar is one which has only magnitude (size) e.g. distance, speed, temperature, volume, work, energy, power, mass etc.
A vector quantity has both magnitude and direction e.g. force, weight, magnetic flux, electric fields, gravitational fields etc.
VECTOR REPRESENTATION
A vector quantity can be graphically represented by a line drawn so that the length of the line denotes the magnitude of the quantity. The direction of the vector is shown by the arrow head.
ADDITION AND SUBTRACTION OF VECTORS
Two or more… Click here to order the complete first term Physics Lesson Note for SS2
Week 3:
DERIVATION OF EQUATONS OF LINEAR MOTION
CONTENTS
• Basic definitions
• Derivation of equations of linear motion
• Motion under gravity
BASIC DEFINITIONS
1. Displacement: This is the distance traveled in a specified direction. It is a vector quantity. Its unit is metres
2. Distance: This is the space or separation between two points. It is a scalar quantity. Its unit is metres
3. Speed: this is the rate of change of distance with time. It is a scalar quantity. Its unit is metre per seconds (m/s)
Speed= distance/Time
4. Velocity: this is the rate of change of distance with displacement with time. It is a vector quantity. Its unit is metre per seconds (m/s)
Velocity= displacement/Time
Acceleration: this is the increasing rate of change of distance with time. It is a vector quantity. Its unit is metre per seconds-square (m/s2). Retardation or deceleration is a… Click here to order the complete Lesson Note on Physics SS2 first term
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