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Fifth Grade (Grade 5) Waves and Sound Questions

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Grade 5 Waves and Sound
What is sound energy?
  1. Energy that can be seen.
  2. Energy that can be heard.
  3. The flow of energy from a warmed object to a cooler object.
  4. The combination of an object's potential and kinetic energy.
Grade 5 Waves and Sound
Hertz (Hz) is the measure of sound wave frequency. It measures how many waves pass between two points in one second. If there are 30 waves that pass in one second, what is the sound's frequency in Hz?
  1. 30 Hz
  2. 15 Hz
  3. 20 Hz
  4. 25 Hz
Grade 5 Waves and Sound
If 30 waves pass between two points but it takes 2 seconds, what is the sound's frequency in Hz?
  1. 30 Hz
  2. 15 Hz
  3. 20 Hz
  4. 25 Hz
Grade 5 Waves and Sound
When light enters a concave lens, the light beams
  1. diverge or spread out.
  2. become wiggly lines.
  3. converge or become focused into one beam.
Grade 5 Waves and Sound
What is the best definition of decibel?
  1. measure of distance
  2. measure of cubic volume
  3. measure of loudness
  4. measure of weight
Grade 5 Waves and Sound
Reflecting sound is called a(n)               .
  1. mirage
  2. echo
  3. decibel
  4. earlobe
Grade 5 Waves and Sound
Sound travels most slowly through which of the following?
  1. an iron pole
  2. a block of wood
  3. a pool of fresh water
  4. an area of dry air
Grade 5 Waves and Sound
What is Sound Energy?
  1. Energy that travels in waves through vibrating matter.
  2. Energy that travels in waves like light from our stars.
  3. It is plain kinetic energy.
  4. It is moving electrons.
Grade 5 Waves and Sound
Sound cannot travel in a          vacuum         , but light can.
Grade 5 Waves and Sound
What is an optical phenomenon that causes a spectrum of light to appear in the sky?
  1. lens
  2. rainbow
  3. frequency
  4. crest
Grade 5 Waves and Sound
Scientists have stated that sounds above                 decibels can cause hearing loss over time.
  1. 35
  2. 65
  3. 85
Grade 5 Waves and Sound
The                 is the measure of a light wave.
  1. feet
  2. light ray
  3. frequency
  4. wavelength
Grade 5 Waves and Sound
The law of reflection states that the angle of incidence is equal to the angle of ________________________.
  1. refraction
  2. reflection
  3. traction
  4. diffraction
Grade 5 Waves and Sound
The number of light waves that occur in one second of time is the                 of a light wave.
  1. lens
  2. prism
  3. frequency
  4. wavelength
Grade 5 Waves and Sound
A                 mirror or lens is curved outward.
  1. convex
  2. concave
  3. plane
  4. spherical
Grade 5 Waves and Sound
Light appears cloudy through objects that are                .
  1. opaque
  2. translucent
  3. shiny
  4. transparent
Grade 5 Waves and Sound
What color of light has the longest wavelength?
  1. red
  2. blue
  3. green
  4. violet
Grade 5 Waves and Sound
The high part of the wave is called the
  1. Crest
  2. Guyot
  3. Trough
  4. Upwelling
Grade 5 Waves and Sound
The color of light with the shortest wavelength is                .
  1. red
  2. green
  3. blue
  4. purple/violet
Grade 5 Waves and Sound
Light travels in                 lines from the sun.
  1. straight
  2. bent
  3. curved
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