4.1 Heat Flashcards
What is happening when you hold a brick of ice and it makes your hands colder?
Conduction
Temperature is a measure of…
… The average kinetic energy of particles
Why are the three kinds of heat transfer?
Conduction
Convection
Radiation
What temperature is absolute zero in degrees Celsius?
-273 degrees
Which direction is heat conducted?
From the hot object to the cold object, or from the hot region to the cold region
Why do you use to measure temperature?
A thermometer
What happens to partials when they are heated
They vibrate more aggressively.
What is an insulator?
A material that is bad at conducting heat.
What happens in heat absorption
Heat is absorbed into an object
What happens when radiated heat is reflected?
The heat is bounced back
What happens when radiated heat is transmitted?
Radiated heat passes through an object
What happens in heat convection?
Hot air rises, the cold air is then pushed towards the floor where it is heated, the heated air rises pushing the cooler air down etc creating a circular current
Which heat transfer method is used in a water heater?
Convection
Is a metal pole a good or bad conductor?
Good
Define radiation
Heat transmitted via invisible waves that travel at the speed of light
