Physics Weekly Blog

  • LM2 quiz

    Posted by Craig Messerman on 9/14/2023

    a. Calculate the average speed and average velocity of a runner who runs 100 meters in 11.00 seconds, on our track.

    b. How many minutes does it take to drive 50.0 km at a speed of 90.0 km/hr?

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  • 2.1 and 2.2 quiz

    Posted by Craig Messerman on 10/24/2022

    waterheatinggraph

    2.1-- How do we know that the right end of this curve reveals heat flow, but not temperature change?

    2.2

    a. Explain the temperature change displayed in front of the room.

    b. What is "latent heat?"

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  • Physics 1.6 quiz

    Posted by Craig Messerman on 10/4/2022

    a. How much force is pulling a 10.0 g ball down a ramp if it changes from 10.0 cm/s to 20.0 cm/s in 1.50 seconds?

    b. What percent of g is pulling the ball?

    c. What is the angle of the ramp? (IBY2)

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  • WSL 5 Quiz

    Posted by Craig Messerman on 4/29/2022

    a. Draw and calculate the frequency of a tone for which the first harmonic resonates in a tube (closed at one end) 45.0 cm long. (Assume 344 m/s speed)

    b. If a 1.50 meter long bass string creates a 50.0 Hz fundamental tone, what is the speed of the waves traveling through the string?

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  • Forces 1 and 2 quiz

    Posted by Craig Messerman on 10/10/2021

    FOR#1: 

    a. Name the instrument, measurement, and explain how the measurement is or is not valid:

    elecbal

    b. Repeat for this:

    scaleNewtons

    FOR#2:

    a. Explain how to measure mass in zero g.

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  • 1.3 and 1.4 Quiz

    Posted by Craig Messerman on 9/16/2021

    LM3

    a. Which of these students seems to have been the best at timing an event? Why?

    b. Which one was the least consistent? Why?

         1. 3.4, 3.7, 3.5, 3.5

         2. 3.2, 3.6, 3.4, 3.4

         3. 3.5, 3.0, 3.4, 3.3

    LM4 (show all work and units!)

    a. Calculate the velocity of a runner who runs 100 meters in 11.00 seconds, on our track.

    b. How many minutes does it take to drive 50.0 km at a speed of 90.0 km/hr?

    Comments (-1)
  • 5.4 Quiz

    Posted by Craig Messerman on 5/10/2021

    1. Calculate two frequencies that will resonate in a 0.50 m tube that is closed on one end.

     

    2. Determine the frequency of this note that is resonating in this tube open at both ends. How long is the tube if 645 Hz resonates?

     

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  • 5.2 Quiz

    Posted by Craig Messerman on 5/4/2021

    1. If the temp is 22 deg C, how long will it take for sound to echo off the end of a 1.5 m long tube?

     

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  • 5.1 quiz

    Posted by Craig Messerman on 4/28/2021

    a. If a standing wave in a spring oscillates 10 times in 3.0 seconds what is the frequency of the wave?

    b. What is the period of one oscillation?

    c. If the wavelength of that wave is 4.0 meter, what is the speed of the wave through the spring?

    d. What is the wavelength of the microwaves used in your cell phone radio to connect to the cell tower? The speed of light (electromagnetic waves) is 3.0 x 10^8 m/s, and the frequency of some cell phones is 2.1 GHz.

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  • 4.1 quiz

    Posted by Craig Messerman on 2/26/2021

    1. How does a generator use magnets to make electricity?

    2. With copper being non-magnetic, how can a copper pipe slow down a magnet?

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