warm
Definition
Warm is a term used to describe a temperature that is above the freezing point of water (0 degrees Celsius or 32 degrees Fahrenheit). The exact definition of warm can vary depending on the context. For example, a scientist might define warm as a temperature that is above 20 degrees Celsius (68 degrees Fahrenheit).
How can the word be used?
The water was warm.
Different forms of the word
Adjective: having a moderate degree of heat; neither hot nor cold.
Verb: to make or become warm.
Noun: a state of being warm.
Etymology
The word "warm" comes from the Old English word "wearm", which means "to heat".
The first recorded use of the word "warm" in English was in the 10th century.
Question
What is the difference between hot and warm?
AQA Science Exam Question and Answer
Question:
Explain the concept of heat transfer and its role in making an object feel warm. Discuss the different modes of heat transfer and how they contribute to the sensation of warmth when an object is touched.
Answer:
Heat transfer is the process by which thermal energy is exchanged between objects due to temperature differences. When we touch an object and it feels warm, this sensation is a result of heat transferring from the object to our skin.
There are three primary modes of heat transfer: conduction, convection, and radiation. Conduction occurs when heat is transferred through direct contact between objects in physical contact, such as holding a warm mug. Convection involves the transfer of heat through the movement of fluids, like warm air rising from a heater. Radiation is the emission of thermal energy in the form of electromagnetic waves, like feeling warmth from the Sun or a heated surface.
When an object feels warm, it is typically due to a combination of these heat transfer mechanisms. For example, if you touch a sun-warmed rock, heat is conducted from the rock to your skin. Additionally, radiation from the Sun contributes to the sensation of warmth.