P2.8 Work, energy and machines Flashcards
1
Q
What is work?
A
Work is A way of transferring energy that does not involve
heating.
2
Q
What is a simple machine?
A
A simple machine is Lever or gear that reduces the force required to do
something, but increases the distance.
3
Q
What is a lever?
A
A simple machine that multiplies the force.
4
Q
What is a gear?
A
A gear is a rotating lever that reduces the force required to do
work. You can use a gear system to increase the force, change direction, or go faster.
