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GJHS Phy Sci S1 P2
GJHS Phy Sci S1 2012 P2
| Question | Answer |
|---|---|
| The material through which a wave travels is called a ____________. | Medium |
| Waves are created when a source of energy causes a medium to: | Vibrate |
| Waves are classified according to: | How they move |
| The highest parts of a transverse wave are called _________. | Crests |
| Waves that move the particles of a medium parallel to the direction in which the waves are traveling are called ____________ waves. | Longitudinal |
| Waves on the top of a pond or a lake are __________ waves. | Surface |
| The maximum distance that the particles of a medium move from the rest position is the ________ of the wave. | Amplitude |
| The distance between two corresponding parts of a wave is the wave's: | Wavelength |
| Frequency is measured in units called ________. | Hertz (Hz) |
| The speed of a wave is its wavelength multiplied by its: | Frequency |
| The bending of waves due to a change in speed is called: | Refraction |
| The bending of waves around the edge of a barrier is known as: | Diffraction |
| The interaction between two waves that meet is called: | Interference |
| Waves combine to make a wave with larger amplitude in a process called ________ _________. | Constructive Interference |
| When an incoming wave combines with a reflective wave in such a way that the combined wave appears to be standing still the result is a _______ _________. | Standing wave |
| What occurs when vibrations traveling through an object match the object's natural frequency? | Resonance |
| Waves produced by earthquakes are called __________ __________. | Seismic waves |
| Longitudinal seismic waves are known as ________ _________. | Primary waves |
| What type of seismic waves does the most above ground damage? | Surface waves |
| Sound is a disturbance that travels through a medium as a ______________ wave. | Longitudinal |
| The speed of sound depends on: | Properties of the medium through it which it travels. |
| The ability of a material to bounce back after being disturbed is called: | Elasticity |
| Sound travels more slowly in _________ materials.(within a given phase of matter) | Dense |
| The first person to break the sound barrier was: | Chuck Yeager |
| Loudness is measured in units called _________. | Decibels |
| Which term refers to how high or low a sound seems to a person? | Pitch |
| The pitch of a sound depends on the sound wave's _________. | Frequency |
| The changing pitch of a police car's siren as it moves by you is an example of: | The Doppler Effect |
| As a sound source moves toward a listener, the pitch appears to _________. | Increase |
| What is a set of tones combined in a way that is pleasing to the ear? | Music |
| What is a mixture of sound waves that do not sound pleasing together? | Noise |
| How well sounds can be heard in a particular room or hall is described by _________. | Acoustics |
| Which part of your ear do sound waves enter through? | Ear canal |
| Which part of your ear sends a message to your brain that you have heard a sound? | Nerve cells |
| Which of the following can cause hearing loss? listening to soft music, cold weather, or infection | Infection |
| Sound waves with frequencies above 20,000Hz are called __________. | Ultrasound |
| Doctors make Sonograms through the use of: | Ultrasound |
| Which waves have some electrical properties and some magnetic properties? | Electromagnetic waves |
| Electromagnetic waves can transfer energy without a: | Medium |
| In 1905, Albert Einstein suggested that light energy travels in tiny packets or particles called: | Photons |
| Visible light has a higher frequency than: | Infrared rays, microwaves, radio waves |
| The range of Electromagnetic waves placed in a certain order is called the: | Electromagnetic spectrum |
| The Electromagnetic waves with the highest frequencies are called: | Gamma rays |
| What kind of waves do cell phones use? | Microwaves |
| A material that reflects or absorbs any light which strikes it is: | Opaque |
| Clear glass, water, and air are examples of what kind of material? | Transparent |
| Frosted glass and wax paper are ________. | Translucent |
| What happens when parallel rays of light hit a smooth surface? | Regular reflection |
| What occurs when parallel rays of light hit a rough or bumpy surface? | Diffuse reflection |
Created by:
Ms. Traynor-Grimes (Ms.TG)
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