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100
A stained glass window is made of ________________ material. a)opaque b)translucent c)transparent d)speckled robin egg
What is b)translucent
100
When a string vibrates quickly, it has a ___________ pitch. a)high b)low c)medium d)harmony
What is a)high
100
Light and sound waves both carry _________. a)friction b)longitudinal waves c)energy d)gravity
What is c)energy
100
In outer space you can't _________ anything. a)see b)feel c)taste d)hear
What is d)hear
100
Sound energy is produced when objects __________. a)sing b)do the Cupid Shuffle c)vibrate d)jump
What is c) vibrate.
200
T/F: The longitudinal wave is a type of sound wave.
What is true.
200
T/F: The part of the ear that has liquid that vibrates and has little hairs is the hammer.
What is false: cochlea
200
T/F: The pupil controls how much light enters the eye.
What is false: iris.
200
T/F: Light rays spread apart when they pass through a concave lens.
What is True
200
T/F: The higher the pitch, the higher the frequency.
What is true
300
Light rays come to a point when passing through a ___________ lens.
What is convex.
300
Light always travels in a ________ line.
What is straight
300
Name the two kinds of waves of which energy travels.
What is longitudinal and transverse
300
Vibrations travel quickest through ________ matter.
What is solid
300
An example of ____________ is light waves bending through water.
What is refraction.
400
List the three TYPES of materials light can/cannot travel through.
What is (in no particular order) opaque materials, translucent materials, transparent materials
400
List three parts of the electromagnet spectrum.
What is (any of the following) X rays, ultraviolet waves, yellow light, black light, visible light, infrared waves
400
Which type of wave has crests, troughs, and wavelengths?
What is transverse waves
400
Which of the two types of waves has compressions?
What is longitudinal and transverse
400
Give an example for the three types of materials that do/do not allow light waves to travel through them.
What is answers may vary. Opaque=any material that does NOT allow light through it. Translucent=any material that allows some, but not all light to travel through it. Transparent=any material that allows most light through it.
500
Explain HOW wind instruments produce sound.
What is: Wind instruments produce sound when a player blows air across a hole. This causes the particles in a column of air to vibrate and produce sound.
500
Explain WHY shorter instruments have higher pitch.
What is: Shorter instruments have higher pitch because there is a shorter column of air in these instruments.
500
Identify 2 sources of light and explain their importance to life on Earth.
What is: answers may vary, but here's my 2 sources and explanations: 1) Sun is a source of light that warms Earth and allows plants to make their own food. 2) Fire is another source of light. Fire provides warmth and light to people and allows people to cook food.
500
Why does sound travel through different mediums at different speeds?
What is: As a sound wave travels, the sound wave compresses particles in the medium. The speed of the sound wave depends on how close the particles in the medium are to one another.
500
Explain why sounds travels at different speeds through these three mediums: solid, liquid, gas.
What is: Particles in SOLIDS are crowded together, so sound travels quickly through them. Particles in LIQUIDS are farther apart, so sound travels through them more slowly than it would in a solid. Particles in GASES are the farthest apart, so sound travels the most slowly through a gas than if it were traveling through either a solid or a liquid.
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