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Questions and Answers
What type of motion does an object experience when it oscillates about a fixed point?
What type of motion does an object experience when it oscillates about a fixed point?
- Rotational Motion
- Translational Motion
- Circular Motion
- Vibrational Motion (correct)
What is the SI unit of velocity?
What is the SI unit of velocity?
- m
- m/s^2
- s
- m/s (correct)
Which of the following is a scalar quantity?
Which of the following is a scalar quantity?
- Acceleration
- Velocity
- Speed (correct)
- Displacement
What type of motion does an object experience when it moves in a circular path?
What type of motion does an object experience when it moves in a circular path?
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What does the slope of a distance-time graph represent?
What does the slope of a distance-time graph represent?
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What is the equation of motion for uniform acceleration?
What is the equation of motion for uniform acceleration?
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What does the area under a velocity-time graph represent?
What does the area under a velocity-time graph represent?
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What type of motion does an object experience when it rotates around a fixed axis?
What type of motion does an object experience when it rotates around a fixed axis?
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Study Notes
Motion
Types of Motion
- Translational Motion: Object changes its position in a straight line or a curved path.
- Rotational Motion: Object rotates around a fixed axis.
- Vibrational Motion: Object oscillates about a fixed point.
- Circular Motion: Object moves in a circular path.
Kinematics
- Displacement: Change in position of an object.
- Measured in meters (m)
- Vector quantity
- Velocity: Rate of change of displacement.
- Measured in meters per second (m/s)
- Vector quantity
- Acceleration: Rate of change of velocity.
- Measured in meters per second squared (m/s^2)
- Vector quantity
- Speed: Magnitude of velocity.
- Measured in meters per second (m/s)
- Scalar quantity
- Time: Measured in seconds (s)
Equations of Motion
- Uniform Acceleration:
- v = u + at
- s = ut + (1/2)at^2
- v^2 = u^2 + 2as
- Uniform Velocity:
- s = vt
- v = constant
Graphical Analysis
- Distance-Time Graph:
- Slope represents velocity
- Area under the curve represents distance traveled
- Velocity-Time Graph:
- Slope represents acceleration
- Area under the curve represents displacement
- Acceleration-Time Graph:
- Slope represents jerk (rate of change of acceleration)
- Area under the curve represents velocity
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