Physical Science Chapter 3 & 4 States of Matter and Mixtures

Why can balloons be twisted into shapes?

• 1. The volume of a gas is constant.

• 1. Particles of gas can be compressed

• Volume is measured in two dimensions

• 1. The force exerted changes the number of particles

1. How do the particles of water that evaporate from an open container differ from the particles that remain?

• 1. The evaporated particles have less speed

• 1. The evaporated particles have greater order 

• 1. The evaporated particles move closer together 

• 1. The evaporated particles have more speed and higher energy

1. Which of these factors could affect the temperature at which water boils?

• 1. The volume of water in the pot

• 1. The atmospheric pressure at which the water is heated 

• 1. The amount of energy added to the water

• 1. The type of fuel used to heat the water

1. What is the same as the melting point of salt?

• Boling Point

• Condensation Point

• Freezing Point

• Sublimation Point

1. Which of the following examples involves an exothermic change?

• 1. Ice melting in a glass of lemonade

• 1. Water boiling in a large pot

• 1. Gaseous water particles coming together to form droplets on a cup

• 1. Air in a bicycle tire gaining pressure on a hot day

1. What type of matter does Boyle’s law tell us about?

• Solids

• Liquids

• Gases

• Plasma

1. Which of the following statements is NOT true of atoms and molecules?

• 1. They are tiny particles

• 1. They are always in motion

• 1. They are found in all matter 

• 1. They never bump into each other

1. What is a pure substance made of two or more elements that are chemically combined?

• Element

• Compound

• Mixture

• Solution

1. What is a solid solution of a metal or a nonmetals dissolved in a metal?

• Suspension

• Alloy

• Colloid

• Compound

1. What is formed when particles of two or more substances are distributed evenly among each other?

• Compound

• Solution

• Element

• Suspension