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# Search Results for motion - All Grades

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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 $m$ from slipping off the disk?
1. $mg$
2. $(mv^2)/r$
3. $(mv^2)/(2g)$
4. $(2pimg)/v^2$
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

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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
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.
A mass is connected to an ideal spring, as shown below. As the amplitude $X$ increases, the period of the simple harmonic motion
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.

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Motion is ........
1. anything with speed.
2. the change of position over time.
3. the way you move something.
4. an object with force.

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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

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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
This is required to move an object.
1. motion
2. friction
3. gravity
4. force
5. acceleration
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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