1. What are Maxwell's Equations?

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Topic: Magnetism in Physics 50% of other users answered correctly. A series of four partial differential equations that describe the nuclear force. A series of four partial differential equations that describe everything in the universe. A series of four partial differential equations that describe the force of electromagnetism. A series of four partial differential equations that describe the force of gravity. A series of four partial differential equations that describe relativity. 2. What does EMF stand for?

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Topic: Magnetism in Physics 50% of other users answered correctly. Elephants Marching Freely Electromotive Force Electromagnetic Friction Electromotive Faraday Electricity, Magnetism, and Force 3. How was it possible for the bike and the semi-truck to have the same momentum?

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Topic: Linear Momentum in Physics 50% of other users answered correctly. One had less mass and less velocity One had less mass but a greater velocity They both had the same mass and velocity One had more mass and a greater velocity The situation is not possible 4. What is the difference between a system and an isolated system?

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Topic: Linear Momentum in Physics 50% of other users answered correctly. An isolated system has constantly changing energy. An isolated system cannot be affected by outside forces. A system must be more than two objects An isolated system is a single object that doesn't interact with any other objects. An unbalanced force 5. Which of the following is NOT one of the principal rays to draw when creating a ray diagram?

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Topic: Physics Lab Experiments: Matter & Light 50% of other users answered correctly. A ray that goes parallel to the central axis, and then through the near-side focal point (for a concave lens). A ray that goes through the near-side focal point, and then through the far-side focal point. Watch correct answer A ray that goes through the focal point, and then parallel to the central axis. A ray that goes parallel to the central axis, and then through the far-side focal point (for a convex lens). A ray that goes straight through the center of the lens, on the central axis. 6. Which of the following describes Boyle's Law?

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Topic: Physics Lab Experiments: Matter & Light 50% of other users answered correctly. Pressure is proportional to volume. Pressure is inversely proportional to temperature. Pressure is inversely proportional to volume. Temperature is proportional to volume. Temperature is inversely proportional to volume. 7. Increasing the distance between particles by a factor of 2 while leaving all other factors the same will:

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Topic: Electrical Forces and Fields in Physics 50% of other users answered correctly. cause the force to increase by a factor of 2 cause the force to increase by a factor of 4 cause the force to remain the same cause the force to decrease by a factor of 2 cause the force to decrease by a factor of 4 8. Electrical energy is conducted through a material by:

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Topic: Electrical Forces and Fields in Physics 50% of other users answered correctly. free electrons impacting and transferring energy to each other atoms that hold on tightly to their electrons free electrons dissipating energy through friction an energetic electron passing all the way through the material the conductivity of the atoms in the material 9. This graph represents an object that is

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Topic: Kinematics in Physics 50% of other users answered correctly. Moving in a negative direction Slowing down Moving at a constant speed Speeding up Not moving 10. This graph represents an object that is

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Topic: Kinematics in Physics 50% of other users answered correctly. Speeding up in a negative direction Not moving Speeding up in a positive direction Moving at a constant speed in a positive direction Moving at a constant velocity is a negative direction 11. Which wave parameter measures the spatial distance of one wave cycle?

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Topic: Waves, Sound, and Light 50% of other users answered correctly. speed wavelength amplitude period frequency 12. In constructive interference, the two waves' amplitudes are

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Topic: Waves, Sound, and Light 50% of other users answered correctly. added to produce a smaller amplitude. subtracted to produce a smaller amplitude. added to produce a larger amplitude. cancelled out by each other. in opposite directions. 13. Why should you avoid looking directly at magnesium burning?

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Topic: Atomic and Nuclear Physics 50% of other users answered correctly.

Because of the low yellow burn that can be annoying to look at.

Because of the high energy released and the ultraviolet flame present.

Because despite the fact that there is no light, it can be damaging to your sight. Red

Because there is no energy released, which can deplete the area of oxygen. 14. What is binding energy?

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Topic: Atomic and Nuclear Physics 50% of other users answered correctly. Energy required to disassemble a whole system into separate parts. It is the same as mass defect but in energy units. Energy required to assemble a whole system. It is the NOT same as mass defect. Energy required to disassemble a whole system into separate parts. Energy required to assemble a whole system. It is the same as mass defect but in energy units. The energy required to stick two atoms together. 15. Which of the following devices is used to measure the current in a circuit?

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Topic: Physics Lab Experiments: Electricity 50% of other users answered correctly. Resistor Voltmeter Battery Ammeter Thermistor 16. What is a parallel circuit?

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Topic: Physics Lab Experiments: Electricity 50% of other users answered correctly. A complete loop in which electrons from a voltage or current source flow. A complete loop in which neutrons from a voltage or current source flow. Where a set of electrical components are connected in branches. A complete loop in which protons from a voltage or current source flow. Where a set of electrical components are connected in a single, continuous loop. 17. How does electric field relate to electric potential?

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Topic: Potential and Capacitance in Physics 50% of other users answered correctly. Electric potential is the rate of change of electric field. Electric field is the rate of change of electric potential. Electric field is the electric potential per unit charge. Electric potential is the electric field per unit charge. There is no relationship between the two. 18. The potential of a charged particle to do work is _____.

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Topic: Potential and Capacitance in Physics 50% of other users answered correctly.

the result of its charge

an inherent property of all charged particles

not dependent on the presence of other charged particles

the result of forces exerted by other charged particles

equal to the energy divided by the charge 19. A car of mass 1500 kg, moves in a circle at 30 m/s. If the circle has a radius of 8 meters, what is the size of the frictional force that is moving the car in the circle?

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Topic: Circular Motion and Gravitation in Physics 50% of other users answered correctly. 168750 newtons. 150000 newtons. 15000 newtons. 5625 newtons. 3200 newtons 20. An example of a reversible reaction is shown by which of the following?

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Topic: Circular Motion and Gravitation in Physics 50% of other users answered correctly. 21. Which of the following are units for force?

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Topic: Newton's Laws in Physics 50% of other users answered correctly. kg * m/ sec kg * m / sec^2 all of these options are units for force g * m / sec m / sec^2 22.

Referring to its definition, which of the following can be true of acceleration?

I. The object's velocity is decreasing at some rate of m/s every second

II. The object's velocity is increasing at some rate of m/s every second

III. The object's velocity is changing at a certain rate every second

IV. The object is traveling a certain number of meters every second

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Topic: Newton's Laws in Physics 50% of other users answered correctly.

I, II and III

I, II, III, and IV

I and III

I and II

IV 23. Two identical wind-up cars A and B are released. Car B has a 2 kilogram weight strapped to the back of the car. Which will have the greatest average speed towards the end of the motion?

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Topic: Physics Lab Experiments: Motion 50% of other users answered correctly. They will both have an average speed of zero. They will have the same average speed. Car A Watch correct answer Car B There is not enough information to answer. 24. What is uniform centripetal motion?

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Topic: Physics Lab Experiments: Motion 50% of other users answered correctly. The motion of an object moving in a circle, at a constant velocity. Motion in a circle, with the net force pointing towards the outside of the circle. None of the other answers are correct. Motion in any curved path. The motion of an object moving in a circle. 25. Which of the following graphs shows a quadratic relationship?

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Topic: Introduction to Physics 50% of other users answered correctly. 26. Which of the following are arranged from smallest unit to largest unit?

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Topic: Introduction to Physics 50% of other users answered correctly. mm, m, cm, km km, m, cm, mm cm, mm, m, km cm, m, mm, km mm, cm, m, km 27. If we stretch a spring from a length of 1 meter to a length of 3 meters, and the spring constant is 0.4, what force did we apply to stretch the spring?

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Topic: Oscillations in Physics 50% of other users answered correctly.

0.133 newtons

-0.8 newtons

0.8 newtons

1.2 newtons

-7.5 newtons 28. During the simple harmonic motion of a pendulum, where is the velocity greatest?

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Topic: Oscillations in Physics 50% of other users answered correctly. At the far left and far right. At the far right only. It is the same throughout the motion. At the far left only. At the equilibrium position (middle). 29. If you were to expand a donut-shaped object, what would happen to the size of the hole in the object?

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Topic: Thermal Physics & Thermodynamics 50% of other users answered correctly. It would decrease in size, at the same rate that the object is increasing in size. It would increase in size at a greater rate than the object itself is increasing in size. It would increase in size at a lesser rate than the object itself is increasing in size. It would increase in size at the same rate that the object itself is increasing in size. Watch correct answer It would decrease in size, but not at the same rate that the object is increasing in size. 30. Why is the zeroth law of thermodynamics important or necessary?

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Topic: Thermal Physics & Thermodynamics 50% of other users answered correctly. Because you have to understand what thermal equilibrium is. It isn't important or necessary, because it's too obvious. Because you have to first define your terms, in particular: pressure. Because you have to first define your terms, in particular: temperature. Because you have to first define your terms, in particular: volume. 31. Which of the following is the definition of a vector?

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Topic: Vectors in Physics 50% of other users answered correctly. A quantity that has just magnitude. An arrow. A quantity that has just direction. A quantity that has magnitude or direction. A quantity that has magnitude and direction. 32. A cannonball is fired to the west at an angle of 60 degrees above the horizontal, with a velocity of 20 meters per second. What is the y-component of this velocity?

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Topic: Vectors in Physics 50% of other users answered correctly.

10 m/s

17.3 m/s

17.3 m/s up

17.3 m/s down

10 m/s up 33. Which of the following is NOT a rotational quantity used in physics?

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Topic: Rotational Motion in Physics 50% of other users answered correctly. Angular velocity Moment of inertia Angular momentum Torque Force 34. A spinning top is spun at 720 degrees in five seconds, by applying a torque of 10 newton-meters. How much power is being transferred to the spinning top? Note: 180 degrees is equal to pi (3.14) radians.

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Topic: Rotational Motion in Physics 50% of other users answered correctly. 50.2 watts. 7200 watts. 25.1 watts. Watch correct answer 360 watts. 1440 watts. 35. Which former planet is now considered to be a dwarf planet?

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Topic: The Universe 50% of other users answered correctly. Jupiter Uranus Pluto Titan Neptune 36. Which planets' moons are believed to have liquid water?

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Topic: The Universe 50% of other users answered correctly.

Jupiter and Neptune

Jupiter and Saturn

Saturn and Mars

Mars and Neptune

Mercury and Mars 37. Why would a system have less energy than it originally started with?

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Topic: Work, Energy, & Power in Physics 50% of other users answered correctly.

The energy was lost as heat.

More energy was created at the beginning than at the end.

The energy was destroyed.

The temperature was too low to create heat.

There was a miscalculation in the conversion of energy. 38. In the absence of friction, how much energy would be lost as a rollercoaster car goes down the first of several 'hills'?

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Topic: Work, Energy, & Power in Physics 50% of other users answered correctly.

1/4

All of it is lost.

None of it is lost.

1/5

1/2 39. Using Kirchhoff's rules, what is the amount of current in I1?

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Topic: Direct Current Circuits in Physics 50% of other users answered correctly. 10A 5A 45A 50A 60A 40. Adding a light bulb to a parallel circuit will:

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Topic: Direct Current Circuits in Physics 50% of other users answered correctly. decrease the total resistance increase the total resistance make the current through each light bulb the same not change the total current through the circuit make the voltage lost in each light bulb different 41. A spaceship is moving at 0.3 times the speed of light relative to the Earth. If the spaceship has a length of 10 meters, how long will it appear when observed from the Earth?

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Topic: Relativity & Quantum Theory in Modern Physics 50% of other users answered correctly. 9.06 meters. 0.3 meters. 9.53 meters. Watch correct answer 0 meters. 10 meters. 42. Which of the following is NOT something that quantum theory helps explain?

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Topic: Relativity & Quantum Theory in Modern Physics 50% of other users answered correctly. How light can behave as both a particle and a wave. How large objects nearing the speed of light have increased inertia. Watch correct answer Why elements in the periodic table behave the way they do. How observing a particle affects the state of that particle. How you cannot know the position of a particle with certainty. 43. Which best describes a fluid?

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Topic: Fluid Mechanics in Physics 50% of other users answered correctly. A material that flows Liquids only A very dense substance A buoyant object Gases only 44. What does Torricelli's theorem relate?

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Topic: Fluid Mechanics in Physics 50% of other users answered correctly. The height the fluid is poured from into the container and the velocity of the falling fluid The height of the fluid above the hole and the fluid's exit velocity Watch correct answer The absolute height of the fluid and the fluid's exit velocity The height of the hole from the bottom of the container and the fluid's exit velocity None are correct 45. Which of Maxwell's Equations says that magnetic monopoles do not exist?

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Topic: Magnetism in Physics 50% of other users answered correctly. Gauss' Law Gauss' Law for Magnetism Newton's Second Law Ampere's Law Faraday's Law 46. What is conserved within any system?

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Topic: Linear Momentum in Physics 50% of other users answered correctly. Momentum Mass Velocity Speed Impulse 47. What is the Plum Pudding Model?

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Topic: Physics Lab Experiments: Matter & Light 50% of other users answered correctly. The best way to cook a plum pudding. The model of the atom used prior to Rutherford's Gold Foil Experiment, with a large area of positive charge in the center and negative 'plums' on the outside. A model of the atom that shows that it is mostly made of empty space. The model of the atom used prior to Rutherford's Gold Foil Experiment, with a large area of negative charge in the center and positive 'plums' on the outside. The model of the atom that was developed from Rutherford's Gold Foil Experiment. 48. Materials that make good electrical insulators contain atoms with:

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Topic: Electrical Forces and Fields in Physics 50% of other users answered correctly. very few, if any, free electrons Watch correct answer high conductivity low conductivity more than 10 electrons energetic electrons 49. For this graph, calculate the average speed between 12 seconds and 20 seconds.

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Topic: Kinematics in Physics 50% of other users answered correctly. - 2.8 m/s 3.8 m/s Watch correct answer - 4.4 m/s 0 m/s 15 m/s 50. It is useful to think of a photon as a packet of

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Topic: Waves, Sound, and Light 50% of other users answered correctly. volume mass power energy waves Lessons To Review

Based on the questions you answered incorrectly, here is a list of lessons to review. We recommend you watch these videos and then take the practice test again to see how you improve. Kinematics in Physics Determining Slope for Position vs. Time Graphs Rotational Motion in Physics Work & Power in Rotational Motion Electrical Forces and Fields in Physics Insulators and Conductors: Examples, Definitions & Qualities Fluid Mechanics in Physics Torricelli's Theorem: Tank Experiment, Formula and Examples Thermal Physics & Thermodynamics Thermal Expansion & Heat Transfer Relativity & Quantum Theory in Modern Physics Einstein's Special Theory of Relativity: Analysis & Practice Problems Quantum Theory: Definition & Examples Physics Lab Experiments: Motion Newton's Second Law: Physics Lab Physics Lab Experiments: Matter & Light Ray Diagrams & Lenses: Physics Lab