G08 - SCIENCE

1. Which state of matter has the strongest forces of attraction between particles?

•   Plasma

• Gas

• Liquid

•   Solid

1. What is the primary difference between a solid and a gas?

• Solid particles are more widely spread out than gas particles.

• Solid particles move more quickly than gas particles.

• Solid flows, while gas is rigid.

• Solid has a defined volume, while gas takes the shape of its container.

1. What is the melting point of a substance?  

• The temperature at which it becomes electrically charged

• Sliding past each other The temperature at which it turns into a solid.

• The temperature at which it turns into a liquid

• The temperature at which it turns into a gas

How do particles behave in a solid?

• They spread out and move freely within the container.

•   They move randomly and frequently collide

• They are tightly packed and vibrate about a fixed point

• They are loosely packed and move freely  

According to the kinetic theory, what are the building blocks of all matter?

•   Large, visible particles

• Minute, moving, and visually invisible particles

• Small particles that are stationary

• Macroscopic particles

1. What is the mass of an electron compared to that of a proton?

• It varies

• Equal

•   Less massive

• More massive

1. Which of the following is a chemical property?

•   Boiling point

• Density

•   Color

•    Flammability

1. What is an element?What is an element?

• A substance that exhibits a uniform composition

• A substance that cannot be broken down into simpler substances by chemical changes

• A substance that consists of two or more elements chemically combined  

• A substance that can be broken down into simpler substances by chemical changes

hat do liquid crystals exhibit that makes them behave somewhat like crystals?

• High compressibility

• Random movement of particles.

• Liquid appearance and flow.

• Order in particle arrangement

1. What causes a liquid to evaporate and eventually boil?

• Decrease in volume

• Increase in temperature  

•   Increase in pressure

•   Decrease in temperature