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The following physics responses are provided by a student and, as such, should be considered in that context. While every effort is made for accuracy, absolute correctness cannot be fully guaranteed.
| C | I | Question | Answer |
|---|---|---|---|
| 4 | Two objects, A and B, are placed on an inclined plane that can be rotated to different angles of elevation. A starts to slide at twice the angle of elevation that B starts sliding. The respective coefficients for static friction for A and B are mA and mB. Choose the last answer that is correct. | μA > μB | |
| 12 | When considering human metabolism in terms of the 1st Law of Thermodynamics, which of the following represents the metabolic rate? 1) ΔU / Δt 2) ΔQ / Δt 3) W / Δt 4) ΔW / Δt 5) U / Δt | ΔU/Δt | |
| 10 | Which best expresses the value for the coefficient of volume expansion, b, for given material as a function of its corresponding coefficient of linear expansion, α? | β = 3α | |
| 13 | The kinetic energy of the bob on a simple pendulum swinging in simple harmonic motion has its maximum value when the displacement from equilibrium is at what point in its swing? 1) zero displacement 2) 1/4 the amplitude 3) 1/2 the amplitude 4) 3/4 the amplitude 5) equal the amplitude | zero displacement | |
| 12 | A 4-mol ideal gas system undergoes an adiabatic process where it expands and does 20 J of work on its environment. How much heat is received by the system? | zero | |
| 12 | A 5-mol ideal gas system undergoes an adiabatic free expansion (a rapid expansion into a vacuum), going from an initial volume of 10 L to a final volume of 20 L. How much work is done on the system during this adiabatic free expansion? | zero | |
| 12 | A 2.0-mol ideal gas system is maintained at a constant volume of 4.0 L. If 100 J of heat is added, what is the work done on the system? | zero | |
| 4 | As a car moves forward on a level road at constant velocity, the net force acting on the tires is: | zero | |
| 13 | A mass on a spring vibrates in simple harmonic motion at a frequency of 4.0 Hz and an amplitude of 4.0 cm. If a timer is started when its displacement is a maximum (hence x = 4 cm when t = 0), what is the speed of the mass when t = 3 s? | zero | |
| 5 | A very light cart holding a 300-N box is moved at constant velocity across a 15-m level surface. What is the net work done in the process? | zero | |
| 5 | A 2.00-kg ball has zero kinetic and potential energy. Ernie drops the ball into a 10.0-m-deep well. Just before the ball hits the bottom, the sum of its kinetic and potential energy is: | zero | |
| 3 | A baseball thrown from the outfield is released from shoulder height at an initial velocity of 29.4 m/s at an initial angle of 30.0° with respect to the horizontal. If it is in its trajectory for a total of 3.00 s before being caught by the third baseman at an equal shoulder-height level, what is the ball's net vertical displacement during its 3-s trajectory? | zero | |
| 11 | In winter, light-colored clothes will keep you warmer than dark-colored clothes if: | you are warmer than your surroundings. | |
| 1 | For which of the values below is x > x^3? 1) x = -1.5 2) x = 0 3) x = 1.0 4) x = 1.5 5) x = 2.5 | x = -1.5 | |
| 5 | The area under the force vs. displacement curve represents | work. |