6th Science Semester Test Review

Front

What happens to the wavelength of a wave as its frequency increases?

Back

The wavelength decreases.

Front

What are substances made up of only one type of particle called?

Back

Pure substances.

Front

What do we call mixtures that have a uniform composition?

Back

Homogeneous mixtures.

Front

What type of energy conversion occurs in a ceiling fan?

Back

Electrical energy is converted to kinetic energy.

Front

What are mixtures that are not uniform or evenly distributed called?

Back

Heterogeneous mixtures.

Front

Define frequency in the context of waves.

Back

Frequency is the number of waves that pass a point in a given period of time.

Front

What is the definition of a pure substance?

Back

A pure substance is a material made up of only one type of particle.

Front

Give an example of a homogeneous mixture.

Back

Saltwater is an example of a homogeneous mixture.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion.

Front

What is the difference between a mixture and a compound?

Back

A mixture is a combination of two or more substances that retain their individual properties, while a compound is a substance formed when two or more elements chemically combine.