A repeating disturbance that transfers energy through matter or space
What is a wave?
A wave strikes the surface and bounces off
What is reflection?
The bending of a wave caused by a change in its speed as it travels from one medium to another.
What is Refraction?
When you speak, your vocal cords _______ to produce sound.
What is Vibrate?
The kind of waves created by vibrating electric charges and composed of vibrating electric and magnetic fields.
What are electromagnetic waves?
Matter through which a wave travels
What is a medium?
The change in wave frequency due to a wave source moving relative to an observer or an observer moving relative to a wave source is called _______ .
What is the Doppler effect?
The bending of a wave around an object.
What is Diffraction?
In which state of matter does sound usually travel fastest
What is solid?
Electromagnetic waves travel by transferring energy
What is between electric and magnetic fields?
The number of wavelengths that pass a fixed point each second
The process of locating objects by emitting sounds and interpreting the sound waves that are reflected from those objects
What is echolocation?
A massless bundle of energy that behaves like a particle
What is a photon?
With respect to sound, _______ is a measure of the amount of energy that flows through a certain area in a specific amount of time.
What is Intensity?
The system of satellites, ground monitoring stations, and receivers that determines your location at or above Earth's surface
What is GPS?
A measure of the size of the disturbance from a wave
What is amplitude?
Microwave ovens cook food by rotating the water molecules inside the food very quickly. How does this happen
What is microwave ovens transmit microwaves into the food?
Transparent materials _______, so you can see objects clearly through them.
What is transmit light without scattering it?
The human perception of sound volume and primarily depends on sound intensity
What is Loudness?
The type of waves used by radar?
What are Radio Waves?
A wave travels at a frequency of 450 hz and has a wavelength of 2 meters. What is the velocity of the wave? (Wave Velocity = Frequency x Wavelength)
What is 900 m/s?
How is ultrasound used for medical imaging?
What is Ultrasound waves are directed toward an area in the human body. The reflected waves produce electronic signals that are converted to video image?
As white light passes through water droplets, different wavelengths are refracted by different amounts producing the separate colors.
How are rainbows formed?
The term for the perception of how high or how low a sound is, related to the frequency of the sound waves?
What is pitch?
Harmful effects can happen when people do not properly protect themselves from ultraviolet waves from the Sun.
What is damage to skin, sunburn, and cancer?