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Course
Physics

Institution
12th Grade

Grade 12 Physics Notes - Keeps you improve cognitive abilities and secure a better grade - accessible anywhere - Neat , Clean and to the point notes

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Uploaded on July 20, 2024
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Written in 2022/2023
Type Class notes
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grade 12 physics cheat sheet notes

Institution Secondary school
Education 12th Grade
Course Physics
School year 4

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Grade 12 Physics Notes

1. Kinematics

1.1 Motion in One Dimension

● Displacement (Δx): Change in position, Δx = x_f - x_i
● Velocity (v): Rate of change of displacement, v = Δx/Δt
● Acceleration (a): Rate of change of velocity, a = Δv/Δt

Equations of Motion (assuming constant acceleration):

● v = u + at
● s = ut + 0.5at^2
● v^2 = u^2 + 2as
● s = (u + v)/2 * t

1.2 Motion in Two Dimensions

● Projectile Motion: Horizontal and vertical motions are independent.
○ Horizontal motion: v_x = v_0x (constant)
○ Vertical motion: y = v_0y * t - 0.5 * g * t^2

2. Dynamics

2.1 Newton's Laws of Motion

● First Law (Inertia): An object remains at rest or in uniform motion unless acted upon by
a net force.
● Second Law (F = ma): The acceleration of an object is directly proportional to the net
force acting on it and inversely proportional to its mass.
● Third Law (Action-Reaction): For every action, there is an equal and opposite reaction.

2.2 Applications of Newton's Laws

● Free-body Diagrams: Diagrams showing all the forces acting on an object.
● Friction: Resistive force opposing motion.
○ Static friction: F_s ≤ μ_s * N
○ Kinetic friction: F_k = μ_k * N

3. Energy and Work

3.1 Work (W)

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