# MTEL Physics (11): Practice & Study Guide Final Exam

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#### Question 1 1. One atom of the element thorium-234 undergoes a radioactive beta-minus decay. What is the elemental identity of the transformed atom?

#### Question 2 2. What is the correct representation of the value 6,783,027 in scientific notation?

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Question 3
3.
Refer to the following diagram. If *V* = 120 volts, *R1* = 8 ohms, and *R2* = 3 ohms, what are the values of *I1* and *I2*?

#### Question 4 4. What is the image distance and characterization (i.e. real or virtual) of a reflected image from a convex mirror if the centerline distance from the object to the mirror is 100 centimeters and the focal length is 60 centimeters?

#### Question 5 5. An 1-inch diameter water main pipe entering a building reduces to a 3/4-diameter pipe upon crossing the walls of the structure. If the flow velocity in the 1-inch water main is 2 feet/second, what is the flow velocity in the 3/4-inch internal pipe?

#### Question 6 6. A simple pendulum has a string length of 0.8 meters. What is the angular velocity of its oscillation?

#### Question 7 7. An electron (mass = 9.109 × 10^-31 kilograms) is emitted from a beta-minus decay reaction at a velocity of 2.2 × 10^8 meters per second. What is its de Broglie wavelength?

#### Question 8 8. What is the quantity and type of electrostatic force that occurs when two protons are located 100 nanometers apart? Note that the electrostatic charge of 1 proton = 1.602 × 10^-19 coulombs.

#### Question 9 9. An acorn with a mass of 2 grams falls from an oak tree at an elevation of 8 meters above ground level. Assuming that all frictional and drag forces are negligible, what is the acorn's final velocity when it hits the ground?

#### Question 10 10. A primary current carrying coil and a secondary coil are located within a mutual magnetic field inside of a transformer. If the primary coil has a voltage of 240 volts contains 2 loops, what is the induced voltage in the secondary coil if it has 10 loops?

#### Question 11 11. A skier with a mass of 90 kilograms (including his skiing equipment) is skiing down a slope that is at a 33-degree angle above the horizontal axis. What is his acceleration down the slope if the frictional force opposing his motion is 40 newtons?

#### Question 12 12. The rotating blade of a helicopter is started up from rest at a constant angular acceleration of rate of 10 radians/second^2 for 10 seconds. What is the angular velocity of the rotating blade when 6 seconds have elapsed?

#### Question 13 13. What is the momentum of a car weighing 15,484 newtons that is traveling at a speed of 85 kilometers per hour?

#### Question 14 14. Light rays from the air shinning into a basin of an unknown liquid material have a refraction angle from the normal line (θ R) of 10 degrees. If the light rays in the air have an incidence angle (θ I) of 20 degrees from the normal line, what is the refractive index of the unknown liquid, assuming that air has a refractive index of 1.0?

#### Question 15 15. Which best describes a fluid?

#### MTEL Physics (11): Practice & Study Guide Final Free Practice Test Instructions

Choose your answer to the question and click 'Continue' to see how you did. Then click 'Next Question' to answer the next question. When you have completed the free practice test, click 'View Results' to see your results. Good luck!