vocabulary
a quick back and forth motion is called what?
vibration
When an object is warmed, what happens to the particles inside the object?
they move more quickly and have more energy
what happens to light when it hits a mirror?
it reflects
the loudness of a sound is called?
volume
What is an object that allows heat to travel through easily?
conductor
what is the flow of thermal energy from one object to another?
heat
How does heat travel through empty space? ex. the sun travels through outer space to Earth
radiation
What is the bending of light as it travels through matter called?
refraction
what is the measure of how low or high a sound seems to a listener?
pitch
what tool measures temperature?
thermometer
what is the distance from on point of a wave to the same point on another way called?
wavelength
What does temperature measure? -heat in matter -- heat absorbed by matter ---total energy transferred by matter ----average energy of particles in matter
average energy of particles in matter
what is an object that lets all light pass though called?
transparent
What is the part of the ear that vibrates when sound waves hit it?
eardrum
What part of the ear contains three tiny bones that pick up vibrations from the eardrum and then pass the vibrations to the inner ear?
middle ear
what is the number of waves passing by in one second called?
frequency
how does heat travel though objects that are touching?
Conduction
what is an object that lets some light pass through called?
translucent
what happens when sound waves bounce off of a smooth surface and are reflected in a pattern?
an echo
What is it called when light waves bounce off a surface?
reflection
Measured by a thermometer, what describes the average kinetic energy of particles of a substance?
temperature
What states of matter carry heat by convection?
liquid and gas
what is an object that doesn't allow any light to go through called?
opaque
What type of sound would have a sound waves that have a high amplitude and a high frequency?
a loud, high pitch sound
What part of the ear acts like a funnel for sound waves?
the outer ear