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Eighth Grade (Grade 8) Forces and Motion Questions

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Grade 8 Forces and Motion
A force is a                     .
  1. constant speed
  2. push or pull
  3. linear quantity
  4. cannot be determined
Grade 8 Forces and Motion
A force
  1. causes all motion.
  2. starts stationary objects moving.
  3. stops moving objects.
  4. is an interaction between two or more objects.
  5. all of the above.
Grade 8 Forces and Motion
If two forces act on an object in the same direction, the net force is the
  1. difference of the two forces.
  2. sum of the two forces.
  3. only one of the forces acts on the object.
  4. neither force can affect the object.
Grade 8 Forces and Motion

This question is a part of a group with common instructions. View group »

Grade 8 Forces and Motion
Grade 8 Forces and Motion
Which best describes the motion of the object recorded in data table?
Data Table - Constant Speed
  1. It does not move.
  2. It maintains a constant velocity.
  3. It undergoes positive acceleration.
  4. It undergoes negative acceleration.
Grade 8 Forces and Motion
Grade 8 Forces and Motion
Acceleration refers to                   .
  1. increasing speed
  2. decreasing speed
  3. changing direction
  4. all of the above
Grade 8 Forces and Motion
Grade 8 Forces and Motion

This question is a part of a group with common instructions. View group »

Motion is
  1. anything with speed.
  2. the change of position over time.
  3. the way you move something.
  4. an object with force.
Grade 8 Forces and Motion
Which shows the formula for calculating speed?
  1. Speed = time x position
  2. Speed = time x mass
  3. Speed = distance/time
  4. Speed = time/velocity
Grade 8 Forces and Motion
In the formula for speed, you must
  1. multiply the distance and the time.
  2. add the distance and the time.
  3. divide the distance by the time.
  4. multiply the speed and the time.
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