work done Flashcards
1
Q
what is work done equal to?
A
energy transferred
2
Q
what is 1Nm equal to?
A
one Joule
3
Q
what are the two types of work done?
A
mechanically
electrically
4
Q
what is mechanical work done?
A
done over a distance
5
Q
what is electrical work done?
A
done by the flow of charged particles
6
Q
what is an object in equillibrium?
A
the forces acting on the object are balanced
7
Q
how do you get an object to change motion/ accelerate?
A
energy is required to do work on the object- force applied has to be larger than the weight on the object
8
Q
what is the formula for mechanical work done?
A
work done = force x distance (in the direction of the force applied)
