Key
Terms and Concepts for Forces
to accompany
chapter 12 Physical Science:Concepts in Action
return to class notes page
Terms:
- Air resistance
- Centripetal
Force
- Electromagnetic Force
- Fictitious Force
- Force
- Friction
- Gravity
- Inertia
- Kinetic Friction
- Magnitude
- Mass
- Momentum
- Net force
- Newton
- Nuclear force
- Projectile
- Static Friction
- Sub- Atomic Weak Force
- Tension
- Terminal Velocity
- Weight
Concepts:
- Newton's laws
- 1st - inertia an object wants to keep doing what it is
doing unless something acts upon it to change the forces
- 2nd F= ma
- 3rd action
- reaction
- Force is a vector
- having both magnitude and direction
- total force is zero
- Tension
- weighing of an object with a spring scale
- Frictional Forces
- variable dependent on velocity and mass
- this is
the force that resists motion
- Air friction
- terminal
velocity - the balanced forces btw air molecules and gravity
- Fictitious Forces
- forces
that you percieve but that dont really exist
- such as the reisitance to inertia when you feel pushed back
in your car when you accelerate
- or the force we call centrifugal force
- 4 Basic or
Universal Forces
- gravity
- electromagnetism
- sub- atomic
week force
- strong force that holds atoms together