TEMPERATURE
All matter is composed of continuously jiggling atoms or molecules. Due to the constant random motion, these particles have _________.
Kinetic energy
What is the unit for heat energy?
Joules (J)
The Celsius scale is named after? (full name)
Anders Celsius
Convert a glass of water at 50°C to Fahrenheit.
F = 122°
What is the process of heat transfer through direct contact?
Conduction
What is the quantity that indicates warmth with respect to some standard and is proportional to the average translational kinetic energy?
Temperature
What is the energy transferred due to a temperature difference?
Heat
The Fahrenheit scale is named after? (full name)
Gabriel Daniel Fahrenheit
Convert an ice cube at −20°C to Kelvin.
K = 253.15
What is the transfer of heat by the movement of fluids?
Convection
What is the first "thermal meter" for measuring temperature?
Thermometer
What is the freezing point of water on the Celsius scale
0 °C
The Kelvin scale is named after? (full name)
William Thomson, 1st Baron Kelvin
What is the boiling point of water on the Kelvin scale?
373.15 K
Radiation transfers energy through ________.
Electromagnetic waves
Who invented the thermometer?
Galileo
The direction of spontaneous energy transfer is always from a ______ object to a neighboring _________ object.
warm to cool
How do you convert Celsius to Fahrenheit? (state equation)
F = (9/5)C + 32
Convert 100°F to Celsius.
C = (5/9)(100-32) = 37.78°C
A thermos has an insulating vacuum layer that (increases/reduces)_____ conduction and convection.
reduces
What year was the thermometer invented?
1602
Does matter contain heat?
No, only molecular kinetic energy and possible potential energy.
How do you convert from Fahrenheit to Celsius? (state equation)
C = (5/9)(F-32)
Convert 25°C to Fahrenheit.
F = (9/5)(25) + 32 = 77°F
The reflective coatings of a thermos (maximizes/minimizes) ________ radiation.
minimizes