MCAS Physics Exams
MCAS 2017 Session 1
A. Kinetic energy decreases.
B. Gravitational potential energy increases.
C. Kinetic energy is converted into mechanical energy.
D. Gravitational potential energy is converted into kinetic energy.
A. Between 2 s and 6 s, the acceleration of the elevator is greatest.
B. Between 4 s and 12 s, the velocity of the elevator is constant.
C. Between 8 s and 14 s, the acceleration of the elevator is constant.
D. Between 14 s and 16 s, the velocity of the elevator is greatest.
A. Mechanical waves travel at a slower speed than electromagnetic waves.
B. Mechanical waves have a shorter frequency than electromagnetic waves.
C. Mechanical waves are greater in reflective strength than electromagnetic waves.
D. Mechanical waves are susceptible to more interference than electromagnetic waves.
A. electromagnetic
B. longitudinal
C. refracted
D. transverse
A. The first student uses one-third as much power as the second student.
B. The first student uses the same amount of power as the second student.
C. The first student uses three times as much power as the second student.
D. The first student uses nine times as much power as the second student.
A. below 40°C
B. between 40°C and 75°C
C. exactly 75°C
D. between 75°C and 100°C
A. at point W only, because there is kinetic friction only when the block is speeding up
B. at point Y only, because there is kinetic friction only when the block is slowing down
C. at points W, X, and Y only, because there is kinetic friction anytime the block is moving on the ramp
D. at points V, W, X, and Y only, because kinetic friction is the force of gravity between the block and the ramp
A. the horse’s speed
B. the horse’s velocity
C. the horse’s acceleration
D. the horse’s displacement
A. amplitude
B. speed
C. velocity
D. wavelength
A. 40 N to the right
B. 40 N to the left
C. 800 N upward
D. 800 N downward
A. oiling the cart’s wheels
B. adding items to the cart
C. removing the cart’s wheels
D. rearranging items in the cart
A. They are both transverse waves.
B. They are both longitudinal waves.
C. They both require a vacuum to travel.
D. They both require a medium to travel.
A. 0.25
Ω
B. 1.25
Ω
C. 4.0
Ω
D. 15.0
Ω
A. when objects W and X are at a distance of 1 m from each other
B. when objects Y and Z are at a distance of 1 m from each other
C. when objects W and Y are at a distance of 2 m from each other
D. when objects X and Z are at a distance of 2 m from each other
A. UV light moves more quickly than visible light.
B. UV light has a lower amplitude than visible light.
C. UV light has a higher frequency than visible light.
D. UV light has a longer wavelength than visible light.
A. 0°
B. 30°
C. 60°
D. 90°
A. pouring water into the ocean
B. freezing water into blocks of ice
C. directing water down onto a turbine blade
D. pumping water up into a tank high above the ground
A. 84 J
B. 119 J
C. 500 J
D. 2100 J
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 two questions.
a. Identify each of the numbered components of the electric circuit and describe its function.
b. The current in the circuit is 0.5 A. Describe two changes to the circuit that would decrease the current in the circuit.
Refer to the following information for the next four questions.
a. Identify the tool used to measure the average molecular kinetic energy of the sample.
b. During which two phase changes does the sample absorb energy?
c. Describe the direction of heat flow between the sample and the air in the container as the sample condenses.
d. Does the sample ever release thermal energy without changing temperature? Explain your answer.
MCAS Physics Exams
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