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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
In wireless communication, Wi-Fi networks transmit data using                .
  1. Sound waves
  2. Infrared waves
  3. Radio waves
  4. Light waves
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 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
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
In a digital system, a wave pulse represents the transition between which two states?
  1. High and low voltage
  2. Positive and negative voltage
  3. Constant voltage and no voltage
  4. Stable and unstable voltage
Grade 12 Physics
Which part of a computer chip controls the timing and synchronization of digitized signals?
  1. Data bus
  2. Clock signal
  3. Transistor array
  4. Memory controller
Grade 12 Physics
In binary, the digit '1' typically represents which state in a digital signal?
  1. Low voltage
  2. High voltage
  3. No voltage
  4. Negative voltage
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