1. Introduction to Kinetics
Honors Physics
Introduction to Kinetics

2. Definitions Kinematics Kinetics
Describing motion without referring to the cause
Ex: time, position, velocity, etc.
Kinetics
Describing motion by referring to the cause
Forces

3. Types of Forces Applied force Weight Normal Tension Friction Spring
Buoyancy
Thrust
Lift
Drag
Magnetic
Electric
& more!

4. The Normal Force
Contact force
Perpendicular to the surface of contact

5. The Tension Force Contact force
Exists in taunt ropes, strings, cords, cables, etc.
Directed along the tether
Can only pull, not push

6. The Friction Force Contact force Resists motion
Opposes motion along surfaces
Directed parallel to the surfaces of contact
Depends on texture & load

7. The Weight Force Non-contact The force due to gravity
Note: gravity itself is not a force
Long-range attraction between objects

8. Mass vs. Weight Mass Weight Constant, physical property of an object.
A measure of how much gravity affects an object.

9. The Applied force Contact force
The generic term used to describe a physical push or a pull on an
object

10. All Forces have Direction!
Line of action

11. Carbon Dioxide (CO2)