7th Grade Quarter 2 Science Review REV

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). Warm air rises while cool air sinks, creating a cycle.

Front

What property of light causes objects to appear in different locations when viewed underwater?

Back

Refraction is the bending of light as it passes from one medium to another, causing objects to appear displaced.

Front

What causes sound?

Back

Sound is caused by vibrations, which create pressure waves in the air.

Front

Which wave has the greatest wavelength?

Back

Wave 3 has the greatest wavelength.

Front

What type of energy is produced when a guitar string vibrates?

Back

Sound energy is produced when a guitar string vibrates.

Front

What is absorption in terms of light?

Back

Absorption is the process by which light is taken in by a material and converted to other forms of energy, such as heat.

Front

What is transmission in the context of light?

Back

Transmission is the passing of light through a material without being absorbed.

Front

What is reflection in terms of light?

Back

Reflection is the bouncing back of light when it hits a surface.

Front

What is the relationship between frequency and wavelength in waves?

Back

Frequency and wavelength are inversely related; as frequency increases, wavelength decreases.

Front

What is sound energy?

Back

Sound energy is a form of energy produced by vibrating objects, which creates sound waves.