Tag Archive | speed of sound

Day 21: Highlights This Week

Today is a quiz day, so I’ll share 2 other things we did this week.

AP Physics C:¬†Students designed their own experiments to determine Young’s Modulus for 3 different types of marshmallows: store-brand jumbo marshmallow, store-brand regular marshmallows, and Jet Puff marshmallows.

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College-Prep Physics: We did another speed of sound lab using a Direct Measurement Video called Keeping Time.

Students took data, used Desmos to create a position-time graph for the sound to travel down the line of kids, and fit a trend line to the data to determine the speed of sound.

SpeedofSoundDMVDesmos

Not bad!

NGSS Science and Engineering Practice #3: Planning and Carrying Out Investigations
NGSS Science and Engineering Practice #4: Analyzing and Interpreting Data

Day 18: Speed of Sound

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College-Prep Physics: Today we did the traditional speed of sound lab using Vernier microphones and Logger Pro. It turns out that our 4-sided meter sticks worked great as tubes. We stood them vertically on the floor so the floor acted as the reflecting surface. We got nice data:

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We used the thermometer in the room and Hyperphysics to determine the actual speed of sound in the room. Most groups got with a few percent!

##CVPM

NGSS Science and Engineering Practice 4: Analyzing and Interpreting Data