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Twelfth Grade (Grade 12) Physics Questions

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Grade 12 Forces and Motion

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Weight is a measure of                                                   .
  1. your mass
  2. the gravitational attraction between you and Earth
  3. mechanical equilibrium
  4. all of these
  5. none of these
Grade 12 Physics
What type of waves are primarily used for communication in cell phones, radios, and the internet?
  1. Mechanical waves
  2. Electromagnetic waves
  3. Sound waves
  4. Water waves
Grade 12 Physics
In wireless communication, Wi-Fi networks transmit data using                .
  1. Sound waves
  2. Infrared waves
  3. Radio waves
  4. Light waves
Grade 12 Waves and Sound
Sound waves with a frequency above 20,000 Hz are referred to as                 .
  1. doppler waves
  2. infrasonic waves
  3. sonic booms
  4. ultrasonic waves
Grade 12 Energy and Momentum
A force applied to a body is said to do "work"                                                                        .
  1. if the body is displaced in the direction of the applied force
  2. if the body is displaced in the direction opposite to the applied force
  3. even if the body does not move
  4. only when the body is moving
Grade 12 Physics
In the decay of Uranium-238 by alpha emission, what is the daughter nucleus produced?
  1. Thorium-234
  2. Lead-206
  3. Radium-226
  4. Polonium-210
Grade 12 Physics
Which nuclear transition involves the capture of an inner orbital electron by the nucleus?
  1. Alpha decay
  2. Beta decay
  3. Gamma decay
  4. Electron capture
Grade 12 Physics
Which of the following is NOT a renewable energy source?
  1. Solar Energy
  2. Wind Energy
  3. Natural Gas
  4. Hydroelectric Energy
Grade 12 Thermodynamics
According to second law of thermodynamics, heat energy cannot be completely converted into useful work owing to                                       .
  1. the entropy of the system
  2. the enthalpy of the system
  3. the internal energy of the system
  4. the translational energy of the system
Grade 12 Physics
What type of waves are electromagnetic waves?
  1. Longitudinal waves
  2. Transverse waves
  3. Stationary waves
  4. Mechanical waves
Grade 12 Physics
What are the components of the atomic structure?
  1. Protons, neutrons, and electrons
  2. Electrons, photons, and positrons
  3. Quarks, muons, and neutrinos
  4. Alpha, beta, and gamma particles
Grade 12 Matter
Which type of energy is released when an ionic solid is dissolved in water?
  1. Hydration energy
  2. Solvation energy
  3. Lattice energy
  4. Crystal energy
Grade 12 Physics
What is one common method used to determine the activation energy of a chemical reaction by analyzing the heat released or absorbed?
  1. Temperature Variation Method
  2. Spectroscopic Methods
  3. Calorimetry
  4. Transition State Theory
Grade 12 Physics
Which of the following types of waves require a medium to propagate?
  1. Electromagnetic waves
  2. Mechanical waves
  3. Radio waves
  4. X-rays
Grade 12 Physics
What happens to the momentum of an object if its velocity doubles?
  1. Momentum doubles
  2. Momentum quadruples
  3. Momentum halves
  4. Momentum remains the same
Grade 12 Physics
What is the function of a longwall shearer in underground mining?
  1. It extracts large rocks from the coal seam
  2. It digs tunnels to reach deep coal deposits
  3. It mines a long wall of coal in a single pass
  4. It supports the roof of the mine during extraction
Grade 12 Physics
In Lewis structure, a covalent bond is represented by                                 .
  1. an arrow towards the atom
  2. an arrow away from the atom
  3. a straight line between the atoms
  4. A dotted line between the atoms
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