Motion and Forces - IB Board Grade 9 Physics
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Motion and Forces

Motion and Forces

23 sections

Sections

Navigate through the learning materials and practice exercises.

  1. 1
    Chapter 1: Kinematics – Describing Motion In Detail

    Kinematics is the study of motion, exploring concepts such as distance and...

  2. 1.1
    Distance And Displacement: Beyond The Basics

    This section covers the fundamental differences between distance and...

  3. 1.2
    Speed And Velocity: Quantifying Rates Of Motion

    This section discusses the concepts of speed and velocity, highlighting...

  4. 1.3
    Acceleration: The Rate Of Change Of Velocity

    This section explains acceleration as a vector quantity that captures the...

  5. 1.4
    Uniform And Non-Uniform Motion: Classifying Movement

    This section categorizes motion into uniform and non-uniform based on the...

  6. 1.5
    Graphical Representation Of Motion

    This section discusses the use of graphs to visualize motion, focusing on...

  7. 1.5.1
    Distance-Time Graphs

    Distance-time graphs visually represent an object's movement, helping to...

  8. 1.5.2
    Velocity-Time Graphs

    Velocity-time graphs are crucial for analyzing the motion of objects,...

  9. 1.6
    Equations Of Motion (Constant Acceleration)

    This section introduces the equations of motion used to describe motion with...

  10. 2
    Chapter 2: Forces – The Causes Of Motion In Detail

    This section explores the fundamental concept of force, its various types,...

  11. 2.1
    Definition Of Force: The Great Mover

    Force is a vector quantity that causes changes in an object's motion,...

  12. 2.2
    Types Of Forces: Categorizing Interactions

    This section categorizes forces into contact and non-contact forces,...

  13. 2.2.1
    Contact Forces

    Contact forces arise from direct physical interactions between objects and...

  14. 2.2.2
    Non-Contact Forces (Field Forces)

    Non-contact forces act on objects without physical contact, through fields...

  15. 2.3
    Newton's Laws Of Motion: The Cornerstone Of Dynamics

    Newton's laws of motion describe the relationship between forces and motion,...

  16. 2.3.1
    Newton's First Law Of Motion (Law Of Inertia)

    Newton's First Law states that an object remains at rest or in uniform...

  17. 2.3.2
    Newton's Second Law Of Motion (The Force-Acceleration Relationship)

    Newton's Second Law states that an object's acceleration is directly...

  18. 2.3.3
    Newton's Third Law Of Motion (Action-Reaction Pairs)

    Newton's Third Law states that every action has an equal and opposite...

  19. 2.4
    Mass Vs. Weight: A Critical Distinction

    This section clarifies the fundamental difference between mass, a measure of...

  20. 2.5
    Resultant Force And Equilibrium: Balancing Acts

    This section covers the principles of resultant forces and equilibrium,...

  21. 2.6
    Pressure: Force Distributed Over Area

    This section introduces the concept of pressure, defining it as the force...

  22. 3
    Skills Developed In Module 2

    Module 2 focuses on developing essential scientific inquiry and...

  23. 4
    Assessments In Module 2

    This section outlines the various assessment types used to evaluate...

What we have learnt

  • Motion is described in terms of distance and displacement.
  • Speed is a measure of distance over time, while velocity also considers direction.
  • Newton's Laws explain how forces influence motion, detailing their types and effects.

Key Concepts

-- Kinematics
The branch of physics that deals with the motion of objects without considering the forces that cause the motion.
-- Force
A push or pull that causes a change in an object's state of motion. It is a vector quantity with both magnitude and direction.
-- Acceleration
The rate at which an object's velocity changes over time, measured in meters per second squared (m/s²).
-- Newton's Laws of Motion
Three fundamental laws describing the relationship between the motion of objects and the forces acting on them.
-- Pressure
The force applied per unit area on a surface, with important applications in various physical systems.

Additional Learning Materials

Supplementary resources to enhance your learning experience.