Defintions
Define what a need is.
Something that you need to survive.
I have the highest kinetic energy, what type of matter am I?
A gas.
Explain how particles are arranged in a solid.
The particles are tightly packed together but they still have space between them. They haave the lowest volume.
How does heat transfer?
From a hot substance to a cold substance
Identify the two units that were discovered by scientists to measure temperature.
Celcius and Fahrenheit
Define kinetic energy.
The energy of movement.
Even though I look like I am not moving my particles are always vibrating what am I?
A solid.
How does the contraction of particles occur?
When the temperature of a substance decreases.
What do good insulators do?
Who invented the first device for measuring temperature?
Galileo Galilei
Define sustainable.
Something that can be maintained or continued. Typically involves maintaining resources to help the environment.
My particles slip past one another and I take the shape of my container, what am I?
A liquid.
How are the particles in a substance affected if a there is an increase of heat?
The particles will spread out and have more space between them. This is known as expansion.
Which type of heat transfer can travel the farthest distance?
Radiation
Who performed an experiment with three pans of water and determined that we needed a reliable way to measure temperature?
John Locke
Define thermal energy.
The energy of heat. In other words, it is the energy of the total kinetic energy in the substance.
I transitioned from a gas to a liquid, what change occurred?
Condensation.
What happens to the sidewalk particles on a hot summer day and why do construction crews purposely separate the slabs of concrete?
The sidewalk particles expand and the lines between the slabs allow room for these particles to expand so that the sidewalk does not crack.
Explain how heat is transferred by conduction.
Heat is transferred by conduction from a hot object coming into contact with a cooler object.
When did humans create fire?
7000 B.C.
Define temperature.
The average kinetic energy of all the particles in a substance.
I transitioned from a gas to solid, what change occurred?
deposition.
Explain what will happen to a helium balloon if you take it outside into the cold from a nice warm house.
The balloon will shrivel up because the helium particles are contracting.
Explain the flow of convection in a boiling pot of water.
The hot water rises and the once it is cooled by coming into contact with the air it cools and goes down the the side of the pot. The rising and falling of water particles forms a circular flow of convection.
When was forced air heating invented?
in the 1800’s