• 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: b. Repeat for this: FOR#2:

a. Explain how to measure mass in zero g.

• 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?

• 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?

• WEM TEST!!!!

Posted by Craig Messerman on 4/1/2019
• 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?

• WEM 1 and 2 Quiz

Posted by Craig Messerman on 2/5/2019 • catapult quiz

Posted by Craig Messerman on 1/9/2019

2D#6:

Calculate Vi for a catapult that flies 5.0 meters and reaches a height of 2.0 meters.

2D#7:

Why is 45 degrees the optimum angle for projectile distance?

• Forces TEST!!!!

Posted by Craig Messerman on 11/26/2018

Test is Wednesday, November 28

Here are some old review notes, not in quite the same order as our targets.Forces Notes • FOR5 Quiz

Posted by Craig Messerman on 11/13/2018

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)

b. Calculate her acceleration. • FOR 4 and 7 quiz

Posted by Craig Messerman on 10/29/2018

Forces 4, 7, 9 Quiz:

a. Draw a scaled free-body diagram for a moving car of mass 2000.0 kg if it is accelerating at 2.00 m/s^2. There are 50.0 Newtons of air friction acting on the car.