Forces – Chapter 4. What are forces? A force is a push or pull exerted by one object on another object Forces are vectors; they have magnitude and direction.
Newtons Laws of Motion 1 st Law – Law of Inertia 2 nd Law – Force = Mass x Acceleration 3 rd Law – Action-Reaction Everything to do with motion, forces,
Chapter 9.4 Potential Energy. Energy that is stored and held in readiness is called potential energy (PE) because in the stored state it has the potential.
Matter. True or False? Water, clay, rocks and trees are all examples of matter. Water, clay, rocks and trees are all examples of matter. TRUE.
Biomechanics Principles of Force. Newton’s first law - Inertia An object at rest tends to remain at rest unless acted upon by some external force An object.
Chapter 9.4
Gravity and the solar system LO: To define gravity and explain how satellites stay in orbit 1.The sun is the centre of what system? _____________ 2. Name.
Inertia and mass
MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.
