summer work test prepare Flashcards
(23 cards)
- What are the unit(s) of force?
Newtons
- What are the unit(s) of energy?
Joules
- What are the unit(s) of work?
Joules
- What are the unit (s) of linear momentum?
kg/ms (kilogram-meters per second)
What are the unit(s) of energy?
Joules
What are the unit(s) of work?
Joules
What are the unit(s) of linear momentum?
kg/ms (kilogram-meters per second)
What are the unit(s) of angular momentum (spin)?
kg/m2s (kilogram-meters-squared per second)
What are the unit(s) of torque?
Nm (Newton meters)
Write an expression for Newton’s second law.
F=ma
Write an expression for work with constant force.
W=Fdcos
Write an expression for the conservation of mechanical energy (without a spring involved).
mgy1+12mv12=mgy2+12mv22
Write an expression for the conservation of energy, including non-conservative forces.
mgy1+12mv12=mgy2+12mv22+ETH
Write an expression for the work-energy theorem.
𝛴W=K
Write an expression for the impulse-momentum theorem.
p=Ft
Write an expression for linear momentum.
p=mv
Write an expression for angular momentum (spin) for a particle.
L=rmv(sin)
Write an expression for angular momentum (spin) for a rotating body/object.
L=I
Write an expression for potential gravitational energy.
Ug=mgh
Write an expression for potential spring energy.
Us=12kx2
Write an expression for frictional force.
Ff=Fn
What is the condition for the conservation of linear momentum?
No external forces act on the system
What is the condition for the conservation of angular momentum (spin)?
No external torques act on the system
