Heat 🔥 Flashcards
Heat is a form of _____
Energy
What type of Energy is Heat?
Thermal Energy 🔥
How is heat measured?
In Joules
What object do we use to measure heat?
A Joulometer
Temperature is how ___ and object is
Hot
Temperature is measured in _______ ______?
Degrees Celsius
What object do we use to measure temperature?
A thermometer
What 3 ways can heat travel?
1️⃣Conduction
2️⃣Convection
3️⃣Radiation
Thermal energy always travels from ____ to ____
Thermal energy always travels from…HOT ➡️ COLD
🥵 ➡️ 🥶
When the doctor says ’you have got a temperature’ what do they really mean? 👩⚕️❓
It means that your body temperature is a naturally higher than 38°C. 🤒
What temperature does water boil at? 💧
100°C
What is recommended body temperature? 🧍♀️
38°C
What would the temperature be for a ‘warm day in Europe’? 🏙️
30°C
What is a normal room temperature? 🪑
20°C
What would the temperature be on a cool day in Northern Ireland? 🌧️
10°C
At what temperature does water freeze? 🧊
0°C
What is present in all the insulators to make them good insulators?
Pockets of air (molecules are spread out)
When air near a radiator is heated it will E______ and become L___ D_______ than the surrounding air
When air radiator is heated it will Expand and become Less Dense than the surrounding air.
Where can convection occur?
Convection can occur in liquids and gases
Why is the cooling element of a fridge placed at the top?
Because the air at the top is warmest it then cools and sinks
Hot objects R_______ energy to their colder surroundings
Hot objects Radiate energy to their colder surroundings
Radiation can/cannot move heat across a vacuum
Can
