Forces and Motion Concepts

The Law of Conservation of Matter states that matter cannot be created or destroyed in an isolated system. The total mass of the reactants must equal the total mass of the products.

A balanced force occurs when two forces acting on an object are equal in size but opposite in direction, resulting in no net force and no change in motion.

An unbalanced force occurs when two forces acting on an object are not equal, resulting in a net force that causes a change in motion.

A homogeneous mixture is a mixture in which the composition is uniform throughout, meaning that the different components are not distinguishable.

A heterogeneous mixture is a mixture in which the components are not uniformly distributed and can be easily distinguished.

Molecules are groups of two or more atoms bonded together, representing the smallest fundamental unit of a chemical compound.

Speed depends on distance traveled and the time taken to travel that distance.

Speed = Distance / Time.

Force is a push or pull acting upon an object, measured in Newtons (N). It can cause an object to accelerate, decelerate, or change direction.

Mass is a measure of the amount of matter in an object, typically measured in grams (g) or kilograms (kg).