energy and work done. Flashcards
1
Q
what is ‘done’ to an object when a force acts on it?
A
work.
2
Q
why is work done on a object when a force acts on it?
A
requires energy to move the object.
3
Q
how much is work is done when a force of 1N causes a displacement of one metre?
A
1J.
4
Q
what is the formula for work done?
A
work done = force × distance( moved along the line of action of the force.)
5
Q
what happens when work is done?
A
energy transfers take place within the system.
