Velocity is a measure of how quickly something moves in a certain direction. It is usually expressed as an object's speed in a certain direction per unit of time. Velocity is a vector, meaning it has a magnitude (size) and direction.
What is Velocity?
Velocity is the speed of an object in a particular direction. It is a vector quantity, which means it has both magnitude (size) and direction. Acceleration is the rate of change of an object’s velocity. It measures how quickly an object’s velocity is changing. Inertia is the tendency of an object to resist changes in its state of motion. It is an object’s resistance to changes in its speed or direction of motion.
The velocity of light is the fastest velocity in the universe, travelling at 299,792,458 m/s. The highest recorded velocity for a human being is 12.4 m/s, achieved by Canadian skateboarder, Jake Brown, after a fall from a height of 11.7m. In a vacuum, the velocity of sound is 340.29 m/s, which is approximately 767 mph.
Did you know?
What is the difference between speed and velocity?
How does an object's velocity change when it experiences a constant acceleration?
What is the formula for calculating velocity?
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What is the formula for velocity?
- Velocity = Distance / Time
- Velocity = Time / Distance
- Velocity = Acceleration x Time
What is the SI unit for velocity?
- Meters per second (m/s)
- Meters (m)
- Seconds (s)
Which of the following is an example of a vector quantity?
If an object moves with a constant velocity of 10 m/s, how far will it travel in 5 seconds?
- 50 meters
- 2 meters
- -50 meters
If an object moves with a velocity of -30 m/s, what does this tell you about its motion?
- The object is moving to the left.
- The object has stopped.
- The direction of motion cannot be determined from this information.