A Spur gear is a gear and it can change the speed and direction of motion. You have to shift your gears in order to make your gears work. If you don't know how to, ask google or ask Wiki answers for a better answer on what to do. Remember, all gears need to be shifted at a certain period of time.
do levers make doing work easier
to make work easier
it makes our work easier
A device to make work easier is a machine, such as a lever.
it can be used to gain speed or to gain in torque1. if big gear rotates small one then gain in speed2. if small one rotates big then gain in torque3.if both are equal then can be used for either of them
work
A double over bicycle will have two gears for the chain and it allows for easier pedaling up and down hills. When you are in a low gear, you will find that having the chain on the smaller gear will work better than having it on the large gear, which should be reserved for the high gear.
No
Machines are designed to make work faster and easier. These machines do so by taking some of the manual work off of you.
It was faster and easier.
Yes the longer the incline plane the easier you finish the work