sp 8-9 mixed Flashcards
1
Q
system
A
single object or group of objects you’re interested in
2
Q
main ways energy can be transferred by
A
heating, forces, electrical equipment
3
Q
if a force moves on an object…
A
work is done
4
Q
work done equation
A
E = FD
5
Q
power
A
rate of energy transfer
6
Q
power equation
A
P = E/T
7
Q
force
A
push or pull on an object that is caused by it interacting with something
8
Q
example of contact force
A
friction
9
Q
what are non-contact forces usually caused by
A
interacting fields
10
Q
resultant force
A
overall force on a point or object
11
Q
an object is in equilibrium if…
A
the forces on it are balanced
12
Q
moments
A
turning effect of a force
13
Q
moment equation
A
moment of a force (Nm) = force * distance
14
Q
A
