MCAS Physics Exams
MCAS 2012 Session 1
A. 5 m/s
B. 8 m/s
C. 15 m/s
D. 50 m/s
A. Sound travels only in air.
B. Sound is a transverse wave.
C. Sound is a longitudinal wave.
D. Sound travels at the speed of light.
A. Force X is added to force Y.
B. Force X is less than force Y.
C. Force X is unrelated to force Y.
D. Force X is greater than force Y.
A. Mechanical waves can produce colored light, while electromagnetic waves cannot.
B. Mechanical waves can travel in any direction, while electromagnetic waves travel only in one direction.
C. Mechanical waves travel only through a medium, while electromagnetic waves can also travel through a vacuum.
D. Mechanical waves travel only at the speed of light, while electromagnetic waves can travel at many different speeds.
A. The masses increase, and the distance between the centers of mass increases.
B. The masses increase, and the distance between the centers of mass decreases.
C. The masses decrease, and the distance between the centers of mass increases.
D. The masses decrease, and the distance between the centers of mass decreases.
A. frequency
B. period
C. velocity
D. wavelength
A. The ball has a displacement of 2 m to the right and traveled a distance of 20 m.
B. The ball has a displacement of 20 m to the right and traveled a distance of 2 m.
C. The ball has a displacement of 9 m to the right and traveled a distance of 11 m.
D. The ball has a displacement of 11 m to the right and traveled a distance of 9 m.
A. A convective flow of energy is set up inside the iron bar.
B. Energy is conducted from atom to atom along the length of the iron bar.
C. Radiation moves through the iron bar and is absorbed by the end not in the flame.
D. Air heated by the flame radiates down the iron bar and heats the end not in the flame.
A. law of conservation of energy
B. law of conservation of matter
C. Newton’s second law
D. Newton’s third law
A. decrease in its inertia
B. increase in its momentum
C. downward force of gravity
D. initial acceleration upward
A. The battery supplies electrons, which move through the bulb but not the wire.
B. The battery supplies chemicals, which pass through the bulb to the end of the wire.
C. The battery supplies heat energy, which causes the bulb to produce light energy.
D. The battery supplies voltage, which causes electrons throughout the circuit to move.
A. The thermal energy increases and the molecules move faster.
B. The thermal energy decreases and the molecules move faster.
C. The thermal energy increases and the molecules move more slowly.
D. The thermal energy decreases and the molecules move more slowly.
A. The speed of light decreases in glass.
B. The energy of light increases in glass.
C. The frequency of light decreases in glass.
D. The wavelength of light increases in glass.
A. The game creates energy when it is turned on.
B. Some of the energy from the batteries is changed to heat.
C. Some of the energy from the batteries is changed to friction.
D. The game receives heat energy from the person playing it.
A. 0.4 m/s
B. 7.1 m/s
C. 25 m/s
D. 72 m/s
A. decreasing the mass of the particles
B. decreasing the distance between the particles
C. changing the charges from positive to negative
D. transferring all the charge from one particle to the other
A. 8,400,000 J
B. 42,000,000 J
C. 168,000,000 J
D. 210,000,000 J
A. 10,000 J
B. 40,000 J
C. 50,000 J
D. 200,000 J
A. electromagnetic
B. longitudinal
C. rotational
D. transverse
A. The observer and fire truck are both stationary.
B. The observer walks at 3 m/s toward the stationary fire truck.
C. The observer is stationary while the fire truck drives toward the observer at 15 m/s.
D. The observer is stationary while the fire truck drives away from the observer at 15 m/s.
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 four questions.
a. In your Student Answer Booklet, draw the parallel circuit using all the circuit components shown. Place the ammeter in the circuit so that it measures the total current of the circuit.
b. Calculate the current flowing through the resistor. Show your calculations and include units in your answer.
When the circuit is operating, the ammeter measures a total current of 1.5 A.
c. Determine the resistance of the light bulb. Show your calculations or explain your reasoning. Include units in your answer.
d. Describe one change that would result if the light bulb and resistor were placed in series instead of in parallel.
Refer to the following information for the next four questions.
a. Calculate the object’s acceleration before the 8.0 N force is applied. Show your calculations and include units in your answer.
b. Calculate the object’s acceleration after the 8.0 N force is applied. Show your calculations and include units in your answer.
c. Is the direction of acceleration in parts (a) and (b) the same or different? Explain your answer.
The object is then pushed onto a slightly rough surface that exerts an additional 20 N frictional force to the left on the object.
d. Will the object come to rest on the slightly rough surface? Explain your answer.
MCAS Physics Exams
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