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Search Results for motion - All Grades

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Grade 8 Forces and Motion
Grade 11 Motion in Two- and Three-Dimensions

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In the diagram below, what force is required to keep an object of mass [math]m[/math] from slipping off the disk?
Circular Motion
  1. [math]mg[/math]
  2. [math](mv^2)/r[/math]
  3. [math](mv^2)/(2g)[/math]
  4. [math](2pimg)/v^2[/math]
Grade 4 Forces and Motion
Motion is
  1. the push or pull of an object
  2. a force that works against motion
  3. a model built by an engineer
  4. when an object changes position
Grade 8 Forces and Motion

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When is an object in motion?
  1. when its distance from another object is changing
  2. when the point of reference remains the same
  3. only if the object is rolling
  4. if the object has forces acting on it
Grade 6 Forces and Motion
An object is in projectile motion if it                                  .
  1. is thrown with a horizontal path
  2. is accelerated downward by gravity
  3. does not accelerate horizontally
  4. all of the above.
Grade 11 Forces and Motion
A mass is connected to an ideal spring, as shown below. As the amplitude [math]X[/math] increases, the period of the simple harmonic motion
Harmonic Motion #5
  1. increases.
  2. decreases.
  3. some times increases and some time decreases, depending on the friction between the mass and the table.
  4. stays the same.
Grade 10 Forces and Motion

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A change in a particle's position results in:
  1. a velocity
  2. an acceleration
  3. a URM
  4. a UARM
Grade 8 Forces and Motion

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Why do astronauts seem like they are floating in space?
  1. Aliens are controlling their bodies
  2. Free fall
  3. Gravity
  4. They are weightless
Grade 3 Forces and Motion
This is required to move an object.
  1. motion
  2. friction
  3. gravity
  4. force
  5. acceleration
Grade 3 Forces and Motion
Grade 3 Forces and Motion
Newton's First Law of Motion states:
  1. an object in motion stays in motion unless a force acts on it
  2. an object's acceleration (change in speed) depends on the mass of the object and the amount of force applied on it
  3. an object at rest stays at rest unless a force acts on it
  4. every action has an equal and opposite reaction
  5. A and C
Grade 3 Forces and Motion
The force that pulls objects to the center of the Earth is called?
  1. motion
  2. friction
  3. gravity
  4. acceleration
  5. force
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