wave characteristics and sound review 7th grade final

the amount of energy a sound wave carries per second through a unit area is its

the changing pitch of a police car's siren as it moves by you is an example of

the speed of a wave is the wavelength multiplied by its

mechanical waves are created when a source of energy causes a medium to

loudness, or sound level, is measured in units called

when an icoming wave combines with a reflected wave in such a way the combined waves appear to be standing still itn is

the pitch of a sound that you hear depends on the sound wave's

what is the amount of mass in a given volume

the ability of a material to bounce back after being disturbed is called

frequency is measured in units called

what is a set of tones that combined in a way that is pleasing to the ear?

the interaction between two waves taht meet is called

what are sound waves with frequencies lower than human range of hearing?

the maximum distance that the particles of a medium move from the rest position is the

what are the crests and troughs of standing waves

which term refers to how high or low a sound seems to a person?

why do you see lightning before you hear thunder?

sound waves with frequency above 20,000 Hz are called

the speed of sound depends on

what state of matter is the poorest transmitter of sound?

the distance between two corresponding parts of a wave is the wave's

what is a mixture of sound waves that do not sound pleasing to together called?

sound is a disturbance that travels through a medium as a

a disturbance that transfers energy from place to place is called a

how well sounds can be heard in a particular room or hall is described as

the bending of waves around the edge of a barrier is known as

what occurs when vibrations traveling through an object match the object's natural frequency?

what are the three basic groups of musical instruments?

a fundamental tone has only one

what is it when the energy of a combined wave is great than the energy of each of the two waves?

a wave travels through a medium because

what occurs when the echoes of a sound continue to be heard after the sound source stops vibrating?

what is a reflected sound wave?

the highest parts of a transverse wave are called

waves that move the particles of a medium parallel to the direction in whichthe waves are traveling are called

The bending of waves due to a change in speed is called

where are the particles farthest apart in a longitudinal wave?