Sagot :
Answer:
1.There are three main types of pulleys: fixed, movable, and compound. A fixed pulley's wheel and axle stay in one place.
2.Some examples of the wheel and axle include a door knob, a screwdriver, an egg beater, a water wheel, the steering wheel of an automobile, and the crank used to raise a bucket of water from a well. When the wheel in a wheel and axle machine is turned, so is the axle, and vice versa.
Answer:
1. Sails on sailboats are raised and lowered using pulleys.
2. Garage doors raise and lower utilizing a pulley system.
3. Rock climbers use pulleys to help them to climb.
2. Bicycle example of wheel and axle form of transportation.
Electric Fan used for hot weather