Waves
Concepts: Lab skills, Graph Interpretation Skills, Waves, Sound
a) Be able to draw diagrams of harmonics in a string, an open tube, and a
closed tube.
b) Draw graphs showing relationships betwee
Michelle Kwan, with a mass of 50 kg, practices ice skating for her Olympic figure
skating routine.
A] When she glides on ice there is so little friction that it can be ignored.
Explain what happens to
You calculate the acceleration for several different roller coaster designs. Which of the following
are safe?
A] Roller Coaster A has an acceleration of 1.8g at the bottom of the loop.
B] Roller Coast
Two-Dimensional Collision
Concepts: Momentum, Work-Energy Conservation, Car Crash Reconstruction
A car crash occurred at an intersection and involved two vehicles: MV1, 1500-kg, moving at 25
m/s at 35
Resonance
Concepts: Waves
A physics teacher sets up a closed tube to resonate at a fundamental frequency of 440 Hz.
a.a.
Draw a diagram of the standing wave in the tube.
a.b.
What is the wavelength of
A 60-W light bulb and a 100-W light bulb are both connected in parallel
to a 120V outlet. Which light bulb has more current in it?
A] 100-W
B] 60-W
C] Both have the same current
A 60-W light bulb and
If the designers desired to use a minimum amount of power to bring the coaster up
the first hill (without changing the height of the hill itself), what should they do?
A] Decrease the time.
B] Increas
A roller coaster has an initial hill with a height of 45 m. It descends to 0-m and then goes into a
loop with a radius of 15 m. Assume the car & passengers have a mass of 500 kg.
A] Calculate the GPE
Three resistors are connected as
shown in the figure. The voltage
(potential difference) between
points A and B is 26 V.
A] What is the equivalent resistance between the points A and B?
B] How much cu
A 0.06kg egg is dropped from a height of 3.5m above the ground. If the egg lands
in a pit of sand and indents the sand by 0.12m, how much force is exerted on the
egg during the collision with the grou