Physics Weekly Blog

  • 2D #2 Quiz

    Posted by Craig Messerman on 1/8/2020

    a. If the projectile in the #1 quiz landed 5.0 meters away, what was Vi?

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  • 2D#1 quiz

    Posted by Craig Messerman on 1/6/2020

    a. If a projectile is airborn for 1.5 seconds, how high did it fly? (Assume launch and landing at equal height, and no friction)

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  • FOR 8 and 11 Quiz

    Posted by Craig Messerman on 11/18/2019

    If this box is accelerating down the ramp at 1.7 m/s/s, what is the coefficient of sliding friction between the box and ramp?

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  • FOR 4 Quiz

    Posted by Craig Messerman on 10/28/2019

    a. Show with a labelled free-body diagram the forces acting on this 60.0 kg skier (weight, force parallel to slope, force normal to slope)

    skier on 50 degree slope

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  • Forces 1 and 2 quiz

    Posted by Craig Messerman on 10/13/2019

    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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  • LM 4 and 5 quiz

    Posted by Craig Messerman on 9/16/2019
     
    • LM4

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

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

      LM5

      a. Calculate the acceleration of a rocket that reaches Mach 1 (341 m/s) in 5.0 seconds.

      b. What speed will be reached by a car accelerating from rest at 3.50 m/s^2 for 15.0 seconds?

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  • WSL 12, 13, 14 quiz

    Posted by Craig Messerman on 5/31/2019

    WSL 12:

    a. Use at least two rays to construct the virtual image you see of yourself in a flat mirror. Remember it is upright and the same size as the object (you!)

    b. Construct the virtual image of an object seen through a double-concave lens. (Hint: it will be smaller and upright. Extra hint: double concave lenses have a virtual focal point!).

     

    WSL 13:

    a. What is the speed of sound if an echo takes 0.292 seconds to come back from a wall 5.0 meters away?

     

    WSL 14:

    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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  • WEM TEST!!!!

    Posted by Craig Messerman on 4/1/2019
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  • WEM 10 Quiz

    Posted by Craig Messerman on 3/11/2019

    WEM 9/10 Quiz:

    You push a 10 kg box along a sheet of ice (assume friction is negligible) for 7.5 meters with a force of 18.5 N.

    a. (WEM 9) How much work was done on the box?

    b. (WEM 10) What was the final velocity of the box after you stopped pushing?

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  • WEM 1 and 2 Quiz

    Posted by Craig Messerman on 2/5/2019

    WEM quiz

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