BRAINCAKEWeight, Mass, Acceleration
The mass of an object depends on how much matter it contains.
Newton's second Law states that an object's acceleration is proportional to the resultant force acting on it.
The relationship can be represented by the equation:
F = m a
where F is the resultant force, m is the mass and a is the acceleration.
One newton is the force that will give a mass of 1kg an acceleration of 1 ms-2.
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Key terms in this lesson
- resultant
- The single force or vector that has the same effect as two or more forces or vectors acting together.
- acceleration
- The rate of change of velocity of an object.
More in Forces and Motion
- Equations of Motion - Uniform Acceleration
- Free Fall Under Gravity
- Projectile Motion
- Car Stopping Distances
- Centre of Mass
- Free-Body Force Diagrams
- Drag and Terminal Velocity
- Moments and Equilibrium
All 17 lessons in Forces and Motion · All OCR AS-level Physics topics