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Twelfth Grade (Grade 12) Physics Questions

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Grade 12 Forces and Motion
What is the definition for the term "vector"?
  1. a quantity having direction as well as magnitude, especially as determining the position of one point in space relative to another
  2. the total displacement (Δd), change in position , divided by the total time for that displacement.
  3. they can provide tons of information of an objects motion in graph
  4. A and C
Grade 12 Physics
Which chemical compound is formed through the ionic bond between Lithium and Fluorine?
  1. Lithium chloride
  2. Sodium fluoride
  3. Lithium fluoride
  4. Fluorine chloride
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 shallow water, the motion of water particles transitions from circular to which type of motion?
  1. Random motion
  2. Linear motion
  3. Elliptical motion
  4. Spiral motion
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
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 statements is true about energy transformation in a gravitational field?
  1. Gravitational potential energy can transform into kinetic energy during free fall.
  2. Kinetic energy transforms into gravitational potential energy as an object falls.
  3. Gravitational potential energy transforms into electrical energy as an object falls.
  4. Kinetic energy and potential energy cannot transform into each other.
Grade 12 Physics
What is the purpose of using an arrow in a chemical equation?
  1. To separate reactants from products.
  2. To indicate the presence of water.
  3. To signify a reversible reaction.
  4. To balance the equation.
Grade 12 Physics
Momentum is                                                .
  1. A scalar quantity
  2. The product of an object's mass and acceleration
  3. Conserved only in elastic collisions
  4. The quantity of motion an object possesses
Grade 12 Physics
How does Newton's third law relate to the concept of momentum in a collision?
  1. Momentum remains constant during a collision.
  2. Momentum is not affected by external forces.
  3. Momentum changes only if the masses involved are equal.
  4. Momentum changes due to unbalanced forces.
Grade 12 Physics
According to Newton's first law, what happens to an object at rest if no external force is applied?
  1. It accelerates
  2. It remains at rest
  3. It moves at a constant velocity
  4. It moves in a circular path
Grade 12 Physics
How do musicians use beats to tune their instruments?
  1. By listening for the loudness of the combined sound
  2. By listening for the presence or absence of beats
  3. By measuring the wavelength of the sound waves
  4. By analyzing the harmonics of the sound
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