Physical Science Pretest

Front

What is the state of matter that has a definite shape?

Back

Solid

Front

If the number of particles in a sample of gas is doubled, what happens to the volume of the gas?

Back

The volume of the gas doubles.

Front

Which of the following is NOT a mixture?

Back

Pure water.

Front

What factors affect a substance's solubility?

Back

Temperature, size of particle, stirring/agitation.

Front

What type of heat transfer occurs when two objects are in direct contact?

Back

Conduction.

Front

What is the state of matter that has a definite volume but no definite shape?

Back

Liquid.

Front

What happens to the volume of a gas when its temperature increases?

Back

The volume of the gas increases.

Front

What is a homogeneous mixture?

Back

A mixture that has a uniform composition throughout.

Front

What is the process of a solid turning directly into a gas called?

Back

Sublimation.

Front

What is the main difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.