Force(p) Flashcards
What is an equilibrium
When there is no resultant force
What is a resultant force?
The force left over after the forces cancel each other out
What is an elastic force?
An object that returns back to its original shape
What is an in inelastic force?
An object that does not return to its normal shape(deformed
What is an extension?
An increase in length when it’s stretched. Provides equal and oppose force
What is the spring constant formula?
F=Ke
What is the definition of Force?
A push/pull act on object due to interactions with another object(newton) (vector quantity)
What is a contact force? (& eXP)
Forced touching:
[friction, air resistance, tension, reaction force]
What is a Non-contact force? (&exp)
Where forces don’t touch
(Gravitational, magnetic, electrostatic)
What is a scalar quantity (&exp)
-only has a magnitude
(Exp: speed, distance, mass, temperature, time)
What is a vector quantity?
Has both magnitude and direction. (EXP, velocity, displacement, acceleration, force, momentum )
What is the equation including force, extension and spring constant?
F=ke
E=extensión
F=forcé
K=spring constant
What is the equation including elastic potential energy. Spring constant, extension?
Ee=0.5Ke(squared)
K=spring constant
E= extensión
Ee= elastic potential energy
What is the difference between speed/velocity
Speed has a magnitude (m/s)whilst velocity has magnitude and direction(m/s north)
What is the difference between distance and displacement?
Distance has a magnitude (m) whilst displacement has a magnitude and displacement (m north)
What is the equation which involves speed, distance and time?
S=d/t
S = speed
d= distance
T= time
What is the equation which involves velocity, displacement and time?
V=S/T
V=velocity
S=displacement
T=time
What are the normal speeds for walking running and cycling?
Walk-1.5m/s
Running -3m/s
Cycle-6m/s
What is acceleration?
The rate of change in velocity
What are the 2 equations for acceleration?
A= v-u/t
2as=v(squared) -u (squared )
_________________________
V=final velocity
U= initial velocity
S=distance
T=time
A=acceleration
