Tutorial Flashcards
What is kinetic energy associated with?
Motion
If there is higher speed is there more or less kinetic energy?
The kinetic energy is greater
Do atoms and molecules have kinetic energy?
Yes they do. The particles inside them are not stationary.
How does temperature affect kinetic energy?
The lower the temperature the less movement there is, so there is less kinetic energy.
At very low temperatures the particles in the substance would hardly move at all
What scale is the absolute temperature zero measured in?
Kelvin scale
What is the correct way of writing SI unit for temperature?
kelvin
Abbreviated - K
What is 0 degrees Celsius equivalent to in kelvin?
273.15 K
What is 0 kelvin in degrees Celsius?
-273.15 degrees Celsius
What surface temperatures does it range from on Mars?
-140 degrees Celsius (winter polar caps)
35 degrees Celsius (summer at equator)
What is the electromagnetic spectrum?
It is a collective term for all known frequencies and their linked wavelengths of the known photons
Give some examples of electromagnetic waves?
Gamma rays X-rays Ultraviolet rays Infrared rays Microwaves Radio waves Visible light
What is the distance from crest to crest in an electromagnetic wave also known as?
Wavelength
What is the definition of frequency?
The number of crests that pass a fixed point every second
What is the unit of frequency?
Per second
S-1(power of the minus one)
What is the name for the unit of frequency?
Hertz
Abbreviated Hz