The energy of games and theme rides Flashcards
1
Q
what does an object held above the ground have?
A
gravitational potential energy
2
Q
what is the equation for GPE?
A
GPE=mgh
m-mass
g-gravitational field strength
h-vertical height movement
3
Q
what is GPE measured in?
A
joules
4
Q
why doesn’t a bouncing ball ever return to its original height?
A
because energy is transferred
5
Q
what happens when a skydiver reaches its terminal speed?
A
their kinetic energy has a maximum value and remains constant
6
Q
what does the change in GPE equal to?
A
work done against friction
7
Q
what does the loss of GPE equal?
A
gian in kinetic energy (KE)
8
Q
what is the equation of mgh?
A
mgh=0.2 x mv(squared)
