Introduction to Force - PDF

Rise and shine students! Physics Class FORCE  Learning Targets describe force explain how forces can affect the motion of objects; and appreciate the role of forces in everyday life. Physics Class  FORCE, F an interaction between one body and a...

Rise and shine students! Physics Class FORCE  Learning Targets describe force explain how forces can affect the motion of objects; and appreciate the role of forces in everyday life. Physics Class  FORCE, F an interaction between one body and another push and pull can make things move, stop, or change direction and shape Newton, N can be contact or non-contact  Force Characteristics 1. Magnitude (Size) ❖ how strong the force is 2. Direction ❖ the way the force is applied VECTOR QUANTITY  happen when two objects are touching Contact Force each other  happen when two objects are touching Contact Force each other the force that opposes the motion between two FRICTIONAL FORCE forces in contact APPLIED FORCE the force that applied to an object by a person or another object the upward force exerted by a surface to support NORMAL FORCE the weight of an object resting on it TENSION FORCE the force transmitted through a string, rope, or cable when it is pulled tight.  forces that can act even if objects aren't Non-Contact Force touching. GRAVITATIONAL MAGNETIC FORCE ELECTROSTATIC FORCE FORCE the force exerted by the force between ▪ the force of attraction magnets, either attracting charged particles or between two objects due objects. Objects with like to their mass. The Earth’s or repelling depending on the poles. charges repel, and gravity pulls objects toward objects with opposite its center. charges attract. Balanced and Unbalanced Forces Balanced forces occur when the forces acting on an object are equal in size and opposite in direction. No change in the object's motion Unbalanced forces occur when the forces acting on an object are not equal or not opposite. Change in the object's motion Activity 1: What will you do? Write “F” if a contact force has been exerted in the situation and “nF” if a non-contact force has been exerted. 1.Pushing a cart 2.Touching a rock 3.Falling rock 4.Moon’s attraction to Earth causing tides 5.Your hair being attracted to your comb after stroking it with the same comb. 6.Tissue being attracted to a plastic sheet 7.Kicking a ball 8.Sitting on a chair 9.Your skin hair being attracted to the TV screen when you switch it on or off. 10.Pulling a cart.  3-2-1 REFLECTION 3 things you learned 2 things you found interesting 1 question you still have Physics Class