Unbalanced and balanced forces

• A force is any push or pull that changes the speed, direction, or shape of an object.
• Contact forces are caused by friction between two surfaces touching each other.
• Non-contact forces include gravity, magnetic attraction/repulsion, electric attraction/repulsion, and nuclear forces.
• Forces can be classified as contact forces (pushing against something) or non-contact forces (pulling on something).
• Contact forces are caused by direct physical interaction between objects, while non-contact forces act at a distance without touching another object.
• Contact forces are caused by two objects touching each other.
• Forces can be classified as contact forces (pushing/pulling) or non-contact forces (gravity).
• Forces can be classified as contact forces, non-contact forces, and frictional forces.
• A force is an influence that causes or tends to cause motion.
• Non-contact forces act at a distance without anything physically touching another object.
• Gravity pulls objects towards Earth's surface with a constant acceleration of approximately 9.8 m/s2.
• Forces can be classified as contact (frictional) or non-contact (gravitational).
• The weight of an object depends on its mass and the strength of gravity acting upon it.
• The weight of an object depends on its mass and the strength of gravity acting upon it.
• Frictional forces act against motion to slow it down.
• Gravitational forces cause objects to fall towards Earth's surface.
• The magnitude of a force is measured in Newtons (N), with one Newton being equal to the weight of an apple.
• Frictional forces occur when one surface rubs against another, causing resistance to motion.
• When there is no net force acting on an object, it remains at rest or moves at constant velocity.
• Force is a quantity that describes the push or pull on an object.
• The unit of force is the Newton (N).
• Balanced forces are when two forces acting on an object are equal in size but act in opposite directions.
• Unbalanced forces are when two forces acting on an object are not equal in size.