Unit 1: Matter Quiz Flashcards
(30 cards)
If temperature increases, what will the kinetic energy of the particles and the motion of the particles do?
The kinetic energy will increase, and the motion of the particles will increase
If temperature decreases, what will the kinetic energy of the particles and the motion of the particles do?
The kinetic energy of the particles will decrease, and the motion of the particles will decrease
If temperature does not change, what will the kinetic energy of the particles and the motion of the particles do?
The kinetic energy of the particles will stay the same, and the motion of the particles will stay the same
How can you compare the kinetic energy of the particles in substances?
By using a thermometer
What is thermal energy?
The kinetic energy of particles in solid liquid or gas
Which has more thermal energy, a beaker with warm water or a beaker with cold water?
The warm water has more thermal energy than the colder water
How does thermal energy get transferred from one substance to another?
Through conduction, convection, and radiation
What is conduction?
The process of transferring energy by direct contact
Rate the substances from less thermal energy to more thermal energy.
Solid have less thermal energy than liquids, and liquids have less than more energy than gases (solid, liquid, and gas)
What happens when you put a thermometer in a hot substance?
The liquid in the thermometer rises
What happens to the thermometer when you put it in a cold substance?
The thermometer contracts and the liquid goes down
When the jar can becomes stuck, how can holding the lid under hot, running water, loosen it?
The hot water expands the metal, making it easier to open
Bridges and other structures are often built with expansion joint. Why are expansion joints necessary?
To help the concrete, expand and contract without it breaking or cracking
The particles in a material will move _________ When thermal energy is added to it.
Faster
The kinetic energy of the material will ________ when thermal energy is added to it.
Increase
The density of the material will _________ when thermal energy is added to it.
Decrease
Temperature of the material will ________ when thermal energy is added to it.
Rise
The material will __________ when thermal energy is added to it.
Expand
The space between the particles will _____________ when thermal energy is added to the material.
Increase
Temperature
Average kinetic energy
Heat
The transfer of thermal energy between objects that have different temperatures
Pure substance
Substance in which all particles are the same
What’s an example of pure substance?
Water, sugar, gold, and aluminum
Mixture
Material made up of two or more substances that are not chemically combined
