Topic 2 - Wheel Axle and Pulley

Question 1

What is a Winch

Answer 1

Small cylinder that has a crank or handle. This is an example of a wheel axle device.

Question 2

What is a Wheel and Axle

Answer 2

As long as there are two turning objects attached to each of their centers, and one causes the other to turn, it is a wheel axle device

Question 3

What is a Gear

Answer 3

A rotating wheel like object with teeth around the rim

Question 4

What is a Gear Train

Answer 4

A group of two or more gears. The teeth of one gear fit into the teeth of another gear. When one turns so does the other.

Question 5

What is a DrIver Gear

Answer 5

(also called the driver): First gear, the one in which the initial force is applied.

Question 6

What is the Follower Gear

Answer 6

Second gear, the one that gets driven

Question 7

What are sprockets

Answer 7

A gear with teeth that fit into a chain, like on your bike.

Question 8

How do you find the speed ratio

Answer 8

Speed Ratio= Number of driver gear teeth / Number of follower gear teeth