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Ninth Grade (Grade 9) Physics Questions

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Grade 9 :: Forces and Motion by jlovering
Which of the following demonstrates a change in weight?
  1. A person changes from 100 kg to 75 kg after dieting
  2. An athlete adds 20 kg to the bar in the weight room.
  3. A rocket leaves the earth and lands on the moon
  4. 12 Liters of oxygen is compressed to 4 Liters
Grade 9 :: Forces and Motion by jlovering
Which of the following does NOT require direction?
  1. Velocity
  2. Acceleration
  3. Force
  4. Speed
Grade 9 :: Forces and Motion by Courtney_Nicole
An object with a mass of 1 kilogram on Earth
  1. has less mass on the Moon
  2. has the same mass on the Moon
  3. has more mass on the Moon
  4. weighs the same everywhere
Grade 9 :: Forces and Motion by jlovering
If object A has a mass of 10 kg and object B has a mass of 20 kg, and both are dropped from the same height (not considering air resistance), which of the following will be true?
  1. Object B will experience a stronger force of gravity, but both will have the same acceleration
  2. Object B will experience a stronger force of gravity, and therefore more acceleration
  3. Both objects experience the same force of gravity, but object A will accelerate faster because it has less inertia
  4. Both objects experience the same force of gravity, but object B will accelerate more because it has more mass
Grade 9 :: Forces and Motion by jlovering
Which of the following is NOT a vector quantity?
  1. Velocity
  2. Acceleration
  3. Force
  4. Speed
Grade 9 :: Energy and Momentum by lisamarie137
Stored energy is called
  1. thermal energy
  2. kinetic energy
  3. mechanical energy
  4. potential energy
Grade 9 :: Energy and Momentum by lisamarie137
Energy in the form of motion is
  1. potential energy
  2. chemical energy
  3. kinetic energy
  4. mechanical energy
Grade 9 :: Forces and Motion by lisamarie137
Grade 9 :: Forces and Motion by Courtney_Nicole
Consider your book is at rest on a table. When you push it horizontally and it's on the verge of sliding, but still at rest, friction on the book acts in a direction that is
  1. opposite to your push
  2. the same direction as your push
  3. at right angles to your push
  4. in no direction until the book slides
Grade 9 :: Forces and Motion by Courtney_Nicole
The acceleration of a rain drop that falls at constant velocity
  1. is zero
  2. is directed downward
  3. decreases over time
  4. increases over time
Grade 9 :: Forces and Motion by Courtney_Nicole
If a ball rolls down an inclined plane and picks up a speed of 4 m/s each second it rolls, its acceleration is
  1. one half of 4 m/s
  2. one half of 4 m/s squared
  3. 4 m/s squared
  4. 10 m/s squared
Grade 9 :: Forces and Motion by Courtney_Nicole
Grade 9 :: Forces and Motion by Courtney_Nicole
Grade 9 :: Energy and Momentum by erinferrari
Which of the following is not used to calculate potential energy?
  1. mass
  2. height
  3. gravitational acceleration
  4. speed
Grade 9 :: Energy and Momentum by lisamarie137
What causes mechanical energy to change to thermal energy?
  1. air resistance and friction
  2. friction and conservation
  3. conservation and air resistance
  4. energy and friction
Grade 9 :: Energy and Momentum by lisamarie137
Potential energy + kinetic energy =
  1. gravitational potential energy
  2. thermal energy
  3. chemical energy
  4. mechanical energy
Grade 9 :: Energy and Momentum by lisamarie137
Grade 9 :: Energy and Momentum by lisamarie137
Kinetic energy depends on what?
  1. speed and mass
  2. mass and velocity
  3. mass and distance
  4. distance and speed
Grade 9 :: Energy and Momentum by lisamarie137
The total amount of kinetic and potential energy in a system is called
  1. chemical energy
  2. mechanical energy
  3. radiant energy
  4. thermal energy
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