Tug of War Motion And Forces Chapter 2

Tug of War

Motion And Forces Chapter 2: Section 3

Force • “A push or pull… that changes the motion of an object. ” • Without force, the motion cannot change!

The Newton • Newton – a metric measure of force • Force required to speed up a 1 kilogram object by 1 meter per second

Net Forces • The total forces, or Net Forces, acting on an object determine how it will move. ▫ Two forces in the same direction will combine ▫ Two forces in the opposite direction will counteract each other

Types of Forces Balanced Forces Unbalanced Forces • “equal in size, opposite in direction” • No movement because no net force • Net force caused by ▫ Unequal opposite forces ▫ Combining forces • Results in movement

Some Examples from Real Life • A soccer ball is sitting at rest. It takes an unbalanced force of a kick to change its motion. • Two teams are playing tug of war. They are both exerting equal force on the rope in opposite directions. This balanced force results in no change of motion.

Draw each diagram in your notes. Determine if it is balanced or unbalanced. Calculate the net force.

One Type of Force: Gravity • Gravitation is a force that every mass exerts on every other mass. • Depends on the masses of the objects and the distance between them ▫ Distance increases = gravity decreases ▫ Example:

Second Type of Force: Electromagnetic • • Universal force between charged forces Opposite charges attract Like charges repel Examples include electricity and magnetism