bicycle

Definition

A bicycle is a two-wheeled vehicle that is propelled by the rider's legs. It is a popular form of transportation and recreation.

Bicycles are made up of a frame, two wheels, a chain, pedals, and handlebars. The frame is the main structure of the bicycle and it supports the wheels and the rider. The wheels are attached to the frame and they are made up of a rim, spokes, and a tire. The chain connects the pedals to the rear wheel and it allows the rider to turn the pedals, which in turn turns the rear wheel. The pedals are attached to the crankset and they are used by the rider to propel the bicycle forward. The handlebars are attached to the frame and they are used by the rider to steer the bicycle.

Bicycles are powered by the rider's legs. When the rider pedals, the chain turns the rear wheel, which in turn propels the bicycle forward. The faster the rider pedals, the faster the bicycle goes.

Bicycles are a popular form of transportation and recreation. They are a great way to get around town or to enjoy a leisurely ride in the countryside. They are also a good way to get exercise.

How can the word be used?

The bicycle was invented in the 19th century.

Different forms of the word

Noun:

bicycle (a vehicle with two wheels, one in front of the other, that is powered by the rider's feet turning pedals).

Adjective:

bicycle (of or relating to bicycles).

Verb:

to bicycle (to ride a bicycle).

Etymology

The word "bicycle" comes from the Greek words "bi-" (two) and "kyklos" (circle). It was first used in English in 1868, and it was originally spelled "bicyclette.".

Question

Name the part of a bicycle.

AQA Science Exam Question and Answer

Question:

Explain the principle of motion involved in the operation of a bicycle.

Answer:

The principle of motion involved in a bicycle's operation is based on the conversion of rotational motion of the pedals into translational motion, enabling the bicycle to move forward. When a cyclist pedals the bicycle, the rotational motion of the pedals is transmitted to the chain, which is connected to the rear wheel. The rear wheel's sprocket, also known as the cog, rotates due to the chain's movement. The rotational motion of the rear wheel's sprocket is then converted into translational motion as the tire grips the ground. This interaction between the tire and the road surface propels the bicycle forward.