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Questions and Answers
What is the relationship between speed and velocity?
What is the relationship between speed and velocity?
- They are the same quantity and can be used interchangeably
- Speed is measured in meters per second while velocity is measured in kilometers per hour
- Velocity is always greater than speed
- Speed is a scalar quantity while velocity is a vector quantity (correct)
Which of the following best describes motion?
Which of the following best describes motion?
- The change in position of an object over time (correct)
- The temperature of an object
- The color of an object
- The force exerted on an object
What does the term 'acceleration' refer to in the context of motion?
What does the term 'acceleration' refer to in the context of motion?
- The rate of change of velocity (correct)
- The resistance an object encounters when moving
- The force required to maintain constant speed
- The distance covered by an object in a specific time period
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Study Notes
Understanding Motion
- Speed refers to how fast an object moves, whereas velocity refers to the rate of change of an object's position with respect to time in a specific direction.
- Motion is best described as a change in the position of an object over time, which can be measured in terms of distance, displacement, speed, velocity, and acceleration.
- Acceleration, in the context of motion, refers to a change in velocity, either in terms of speed or direction, which can be caused by a net force acting on an object.
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