window pane
Definition
A window pane is a single sheet of glass that is used in a window. It is typically made of tempered glass, which is a type of glass that is stronger and more durable than regular glass. Window panes are held in place by the window frame and can be either transparent or translucent.
Window panes are an important part of a window because they allow light to enter the building and provide a view of the outside world. They also help to insulate the building, keeping the heat in during the winter and the cool air in during the summer.
Window panes can be made of different materials, including glass, plastic, and acrylic. The material that is used depends on the climate and the desired level of insulation.
Window panes can also be tinted or coloured to block out sunlight or to add a decorative touch.
How can the word be used?
The window pane was broken.
Different forms of the word
Noun: a single sheet of glass in a window.
Verb: to provide with a window pane.
Etymology
The word "window pane" comes from the combination of the words "window" and "pane".
The word "window" comes from the Old English word "windæge", which means "hole in a wall to let in light".
The word "pane" comes from the Old French word "pane", which also means "sheet of glass".
The first recorded use of the word "window pane" was in the 14th century.
Question
What is the difference between a window frame and a window pane?
AQA Science Exam Question and Answer
Question:
Discuss the purpose and features of a double-glazed window pane. Explain how double glazing works to improve energy efficiency and reduce heat transfer in buildings.
Answer:
A double-glazed window pane consists of two glass layers separated by a gap filled with air or insulating gas. This design enhances energy efficiency and provides several benefits for buildings.
The primary purpose of double glazing is to reduce heat transfer through windows, improving thermal insulation. The air or gas between the glass layers acts as a barrier, slowing down the movement of heat. This prevents heat from escaping during colder months and reduces heat gain during warmer periods, leading to a more comfortable indoor environment and lower energy consumption for heating and cooling.
The insulating gap in double-glazed windows also serves as an effective sound barrier, reducing noise transmission from outside to inside and vice versa, contributing to quieter living and working spaces.
Double glazing works by utilising the principles of conduction, convection, and radiation. The trapped air or gas minimises heat conduction between the glass layers, while the convective currents are reduced due to limited air movement within the gap. Additionally, the reflective coatings and low-emissivity (low-E) glass used in some double-glazed windows further reduces radiant heat exchange.