Упр.1 Модуль 8 Across the curriculum ГДЗ Spotlight 10 класс
AWe make things hotter by adding energy to them. This energy can come from electricity, friction, light or chemical and nuclear reactions.
Решение #
Приведем выдержку из задания из учебника Юлия Ваулина, Джунни Дули 10 класс, Просвещение:
A
We make things hotter by adding energy to them. This energy can come from electricity, friction, light or chemical and nuclear reactions. When two objects come into contact, they exchange energy until they are as hot as each other. Heat is the flow of energy between objects.
Ittasks easy to imagine that hot objects contain heat, but we can only understand how hot something is by how it affects other things. You know a fire is hot because it warms your cold house, and you realise your soup is hot when it bums your tongue. Generally speaking, temperature is a measurement that we use to describe the sensation of feeling warm or cold from an object. The molecules inside most things are constantly moving and when something gets hotter, the molecules move faster. So, the temperature of an object depends on the average energy of the movement of the molecules within it. We experience temperature every day. When it is hot outside we feel hot, when it is cold outside we feel cold. Temperature does not depend on the size or type of the object. It is a measure of the average energy of molecular motion in a substance.
Heat is a form of energy that flows from something thattasks hot to something thattasks cold, whereas temperature is a measurement of how hot or cold something is. Heat is measured in joules, while temperature is usually measured in degrees (Celsius or Fahrenheit .
Thermometers measure temperature by using materials that change in some way when they are heated or cooled. In a mercury or alcohol thermometer, the liquid expands as it is heated and contracts when it is cooled, so the length of the liquid column increases or decreases depending on the temperature.
1 What is the difference between heat and temperature? Discuss. Listen and read text A and check your answers.