PhysicsLAB: MCAS 2019 Session 1

PhysicsLAB

MCAS Physics Exams
MCAS 2019 Session 1

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A. The energy of a light wave is proportional to its frequency.
B. The frequency of a light wave is inversely proportional to its wavelength.
C. When a light wave is refracted, the change in speed depends on its wavelength.
D. When a light wave is reflected, the angle of incidence and the angle of reflection are equal.

A. a decrease in both the resistance and the voltage
B. an increase in both the resistance and the voltage
C. a decrease in the resistance and an increase in the voltage
D. an increase in the resistance and a decrease in the voltage

A. The kinetic energy of the water molecules decreases as energy is released into the environment.
B. The potential energy of the water molecules increases as energy is released into the environment.
C. The kinetic energy of the water molecules increases as energy is absorbed from the environment.
D. The potential energy of the water molecules decreases as energy is absorbed from the environment.

A. sport-utility, truck, car
B. car, sport-utility, truck
C. truck, car, sport-utility
D. truck, sport-utility, car

A. A small amount of energy is lost due to gravity.
B. Some kinetic energy is lost due to air resistance and friction.
C. The pendulum’s inertia acts in opposition to its potential energy.
D. The pendulum’s kinetic energy gradually turns to potential energy.

A. The glass roof of a greenhouse reflects energy.
B. Warm air rises above cool air in the atmosphere.
C. Sunlight transfers energy to a concrete sidewalk.
D. The handle of a pan on a hot stove becomes warm.

A. The current is reduced by one-fourth.B. The current is reduced by one-half.C. The current is doubled.D. The current is tripled.

A. 58,600,000 mB. 117,000,000 mC. 384,000,000 mD. 1,536,000,000 m

A. spinning the wire near a battery
B. placing a resistor at the end of the wire
C. heating a switch and placing it on the wire
D. moving a magnet up and down near the wire

A. 900 JB. 2700 JC. 6300 JD. 9000 J

A. gamma raysB. infrared radiationC. ultraviolet radiationD. x-rays

A. 0.25 m/s²B. 4 m/s²C. 32 m/s²D. 256 m/s²

A. The air particles move in circles inside the sound wave.
B. The air particles move across the room with the sound wave.
C. The air particles move back and forth, parallel to the direction of the sound wave.
D. The air particles move back and forth, perpendicular to the direction of the sound wave.

A. use metal spheres that have less mass
B. give both metal spheres a positive charge
C. decrease the distance between the metal spheres
D. remove the positive charge from the sphere on the left

A. The wave needs a medium to transmit energy.
B. The wave maintains a constant speed within a medium.
C. When the amplitude of the wave increases, the speed of the wave increases.
D. When the frequency of the wave increases, the wavelength of the wave decreases.

A. 0.16 AB. 6.0 AC. 35 AD. 150 A

A. Work is needed for an object to keep a constant kinetic energy.
B. Work is needed for an object to keep a constant potential energy.
C. Increasing the kinetic energy of an object increases the amount of work needed to stop it.
D. Increasing the potential energy of an object decreases the amount of work needed to stop it.

Open-Response Questions

BE SURE TO ANSWER AND LABEL ALL PARTS OF THE QUESTION.
Show all your work (diagrams, tables, or computations) in your Student Answer Booklet.
If you do the work in your head, explain in writing how you did the work.

Refer to the following information for the next three questions.

The diagram below represents one type of wave created on a guitar string when the string is plucked. The string has a length of 0.65 m and vibrates at a frequency of 880 Hz.

a. In your Student Answer Booklet, copy the wave diagram and label the wavelength of the wave.

b. Calculate the velocity of this wave on the string. Show your calculations and include units in your answer.

The wave on the guitar string also creates sound waves in the air. The speed of the sound waves is 340 m/s in air. The pitch created by the guitar string matches the pitch heard by an observer.

c. Compare the frequency and wavelength of the wave on the guitar string to the frequency and wavelength of the sound wave in the air.

Refer to the following information for the next four questions.

a. Using the data for person 1, calculate the speed of the walkway. Show your calculations and include units in your answer.

Stepping onto the walkway, person 1 accelerates from an initial speed of 0 m/s to the speed of the walkway in 0.6 s.

b. Calculate the acceleration of person 1. Show your calculations and include units in your answer.

c. Calculate the net force that accelerated person 1. Show your calculations and include units in your answer.

Person 1 and person 2 have the same acceleration as they step onto the moving walkway.

d. Identify whether the net force acting on person 1 is greater than, less than, or equal to the net force acting on person 2. Explain your answer.

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AAPT - 1999 Physics Olympiad Screening Test (Part 2)

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AAPT - 1999 Physics Quiz Bowl (Part 2)

AAPT - 2000 Physics Olympiad Screening Test (Part 2)

AAPT - 2000 Physics Olympiad Screening Test (Part 2)

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AAPT - 2000 Physics Quiz Bowl (Part 1)

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AAPT - 2006 Physics Quiz Bowl (Part 2)

AAPT - 2007 Physics Quiz Bowl (Part 1)

AAPT - 2007 Physics Quiz Bowl (Part 2)

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AAPT - PhysicsBowl 2015 (Part 1)

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AAPT - PhysicsBowl 2016 (Part 2)

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NY - January 2008, Part 2

NY - January 2008, Part 3

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NY - June 2018, Part 2

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NY - June 2019, Part 2

NY - June 2019, Part 3

- MCAS 2004 Session 1

- MCAS 2004 Session 2

- MCAS 2005 Session 1

- MCAS 2005 Session 2

- MCAS 2006 Session 1

- MCAS 2006 Session 2

- MCAS 2007 Session 1

- MCAS 2007 Session 2

- MCAS 2008 Session 1

- MCAS 2008 Session 2

- MCAS 2009 Session 1

- MCAS 2009 Session 2

- MCAS 2010 Session 1

- MCAS 2010 Session 2

- MCAS 2011 Session 1

- MCAS 2011 Session 2

- MCAS 2012 Session 1

- MCAS 2012 Session 2

- MCAS 2013 Session 1

- MCAS 2013 Session 2

- MCAS 2014 Session 1

- MCAS 2014 Session 2

- MCAS 2015 Session 1

- MCAS 2015 Session 2

- MCAS 2016 Session 1

- MCAS 2016 Session 2

- MCAS 2017 Session 1

- MCAS 2017 Session 2

- MCAS 2018 Session 1

- MCAS 2018 Session 2

- MCAS 2019 Session 2

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