Physical Science Test 2 Review

Flashcards created for reviewing key concepts from the Physical Science Test 2.

What is matter?

Anything that has mass and takes up space.

List three physical properties.

Density, boiling point, viscosity.

List three chemical properties.

Flammability, toxicity, oxidation.

Put the following substances in order of increasing viscosity: water, syrup, peanut butter.

1. Water, 2. Syrup, 3. Peanut butter.

If you cut an object in half, will its density be halved? Why or why not?

No, because density is an intrinsic property and remains constant regardless of size.

What is the difference between flammability and combustibility?

Flammability refers to the ability to catch fire easily, while combustibility refers to the ability to burn.

What is the Kinetic Molecular Theory?

The theory that explains the behavior of gases in terms of particles in motion.

What three factors affect the dissolving rate of sugar in tea?

Temperature, agitation, and concentration.

What is the melting point?

The temperature at which a substance changes from solid to liquid.

What is the boiling point?

The temperature at which a substance changes from liquid to gas.

What is the phase of the substance at point A on the graph?

Solid.

What does point B on the graph represent?

Heat of vaporization.

What is the highest temperature the liquid phase reaches under standard conditions?

The boiling point of the substance.

What is solute?

The substance that is dissolved in a solvent.

What is solvent?

The substance that dissolves the solute to form a solution.