8th Physical Science

A student is preparing investigations to demonstrate behaviors of light waves. The diagrams above shows the setup for each investigation

From left to right what light behavior does each setup show

• Reflection, Refraction, Transmission

• Transmission, Reflection, Refraction

• Transmission, Refraction, Reflection

• Refraction, Reflection, Transmission

Tags

NGSS.MS-PS4-2

A student is comparing two sound waves.

Choose two phrases that correctly compare the wavelength and the energy of the two sound waves.

The wavelength of sound wave X is ( longer than / shorter than / equal to ) the wavelength of sound wave Y.

Therefore, sound wave X has ( more energy than / less energy than / the same amount of energy as ) sound wave Y.

• The wavelength of X is longer than Y and the sound of X has more energy than Y

• The wavelength of X is shorter than Y and the sound of X has more energy than Y

• The wavelength of X is longer than Y and the sound of X has less energy than Y

• The wavelength of X is shorter than Y and the sound of X has less energy than Y

• The wavelength of X is equal tot Y and the sound of X has the same amount of energy as Y

Tags

NGSS.MS-PS4-1

Prism Investigation

Students in a science class conducted an investigation using a prism. The students reported the following observation.

Choose one word in each set of parentheses to construct a statement about which color of light exiting the prism has the most energy.

The color ( red / orange / yellow / green / blue / indigo / violet ) has the most energy, as it has the ( longest / shortest ) wavelength.

• Red / Longest

• Red/ Shortest

• Violet/ Longest

• Violet/ Shortest

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Prism Investigation

Students in a science class conducted an investigation using a prism. The students reported the following observation.

Which statement best describes the behavior of the different colors of light exiting the prism after the white light shines on it?

• The different colors of light reflect at the same angle.

• The different colors of light reflect at different angles

• The different colors of light refract at the same angle

• The different colors of light refract at different angles

Tags

NGSS.MS-PS4-2

The diagram represents the movement of sound from music playing through a speaker to a person’s ear.

Which statement best explains which type of energy shown needs a medium through which to travel?

• Sound needs to travel through a medium because the energy is produced by a speaker

• Light needs to travel through a medium because it involves the movement of light rays

• Sound needs to travel through a medium because it involves the movement of particles

• Light needs to travel through a medium because the energy is moved in two directions

Tags

NGSS.MS-PS4-2

Use the scenario to answer the next two questions.

Straw Horn

A student is investigating the properties of sound waves and light waves. To learn more about sound, the student constructs a straw horn following the procedure above

The student observes that the shorter straws produce sounds with a higher pitch. Which set of information identifies and explains the characteristic of sound that the student observes?

• Characteristic: amplitude

  Explanation: Sounds with higher pitches have greater amplitudes

• Characteristic: amplitude

  Explanation: Sounds with lower pitches have greater amplitudes

• Characteristic: frequency

  Explanation: Sounds with lower pitches have greater frequencies

• Characteristic: frequency

  Explanation: Sounds with higher pitches have greater frequencies

Use the scenario to answer the next question.

Straw Horn

A student is investigating the properties of sound waves and light waves. To learn more about sound, the student constructs a straw horn following the procedure above.

The student wants to investigate how sound waves from the straw horn interact with different materials. Which wave property should be tested, and which method should be used to test it?

• Wave property: absorption

  Method: playing the straw horn in a room with hard surfaces and a room with soft surfaces

• Wave property: absorption

  Method: making several sounds from straws of different lengths

• Wave property: pitch

  Method: playing the straw horn in a room with hard surfaces and a room with soft surfaces

• Wave property: pitch

  Method: making several sounds from straws of different lengths

Tags

NGSS.MS-PS4-2

A student builds a simple guitar using rubber bands and a cardboard box. Plucking the rubber bands results in sound waves. Which step would best help the student investigate the effect of changing the resonance of the sound waves?

• adding more rubber bands to the guitar

• adding color patterns to the outside of the box

• using more force when plucking the rubber bands

• building a similar guitar using a larger or smaller box

The model represents a sound wave.

Which statement best describes the relationship between matter and energy in a sound wave?

• Particles of matter transform into energy to produce a sound wave

• Energy in a sound wave moves particles of matter from one place to another

• Energy in a sound wave transfers between particles of matter in a repeating pattern

• Particles of matter are transformed into other types of matter by energy in a sound wave

Tags

NGSS.MS-PS3-5

NGSS.MS-PS4-1

A light source sends light waves through a small opening in a piece of paper to a screen. The diagram shows the setup.

Choose a word or phrase in each set of parentheses to describe the most likely effect that the opening in the paper will have on the light waves

The light waves will be diffracted by the opening in the paper, causing the light waves to

( cancel out / come together / spread out ) and appear ( brighter / dimmer / equally bright

• Cancel/ Brighter

• Cancel/ Dimmer

• Spread out/ Brighter

• Spread out / Dimmer

• Come together/ Dimmer

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2