Heat & Temperature Flashcards
What is temperature?
Temperature is a measurement of how “cold” or “hot” something is. Temperature is the measurement of the speed of particles.
How do we measure temperature?
With a thermometer.
What is the freezing point of water? What is the boiling point of water?
The freezing point water is 0ºC. The boiling point is of water is 100ºC.
What is kinetic energy?
Kinetic energy is the energy of motion.
The faster a motion is the _______ kinetic energy.
More
The slower a motion is the _______ kinetic energy.
Less
All matter is made up of _______ particles.
Tiny
Particles have ________ _________ them.
space between
Particles are in __________ motion.
Constant
Particles move faster when __________.
they are heated
Particles are _________ to each other.
Attracted
What is thermal energy?
Thermal energy is the total energy of all the moving particles in a substance.
There is a small pool that you want to heat up. You have a choice of heating up the pool with a tea cup full of water at the temperature of 100ºC and you have a bucket full of water at 50ºC. Which one will heat up the pool the most?
The bucket, because it has more thermal energy.
Materials will ____________ with increased temperature.
Expand
Materials will ___________ with decreased temperature.
Contract
