topic 2:measuring temperature
Who created the first thermometer?
Galileo.
What is the particle model of matter?
It is a Scientific description of many different features of these tiny particles.
What is the process from a gas to liquid called?
condensation
What type of radiation has the biggest waves?
Radio waves.
What four forms of energy?
mechanical, chemical, nuclear, electrical.
What is absolute zero?
Absolute zero is -273.15 degrees Celsius. At that temperature, particles stop moving.
What does the Law of Conservation state?
Energy cannot be created or destroyed, it can only be transformed from one type to another.
What is the process from a liquid to a gas?
vaporization.
What type of radiation has the smallest waves?
Gamma rays.
Mechanical forces ____ or _______ objects.
Push or pull.
How does the thermocouple work?
There are two wires twisted together. When the tips of the wires are heated, it sends an electrical current which can turn a switch off and on.
Define temperature?
Is the measure of the average energy (speed) of the particles in a substance.
What is the process from a liquid to solid? Two examples.
freezing and solidification.
What type of radiation wave do we see.
Visible light spectrum.
What is friction?
It is the force that works against movement.
What thermometer would you use in this scenario:
Making long term temperature records at a weather office
Recording thermometer.
Define Thermal energy?
It is the total kinetic (movement) energy of all the particles in a substance.
What is heat capacity?
The amount of thermal energy that warms or cools an object by 1 degree Celsius.
What are three types of ways to transfer thermal energy?
Radiation, conduction, convection.
Burning fossil fuels contributes to the _______ ________.
Greenhouse effect.
Anything that is warmer then ______ _______ gives off infrared radiation.
Absolute zero.
how many particles are in a rain drop?
1 700 000 000 000 000 000 000 particles.
What is specific heat capacity?
The amount of thermal energy that warms or cools 1 gram, of a specific type of particles, by 1 degree Celsius.
What is radiation?
Radiation is the transfer of energy without any movement of matter (no particles).
Give 1 example of a non-renewable energy.
Gas.