Podcast
Questions and Answers
What is the SI unit of speed?
What is the SI unit of speed?
- Centimeters per second (cm/s)
- Miles per hour (mph)
- Kilometers per hour (km/h)
- Meters per second (m/s) (correct)
What is the formula to calculate average speed?
What is the formula to calculate average speed?
- Time × Distance
- Distance ÷ Time (correct)
- Time ÷ Distance
- Distance × Time
Which of the following is an example of non-uniform motion?
Which of the following is an example of non-uniform motion?
- A train moving at a constant speed on a straight track
- A cyclist accelerating from rest (correct)
- A pendulum swinging back and forth
- A car moving at a constant speed on a straight road
Flashcards
What is the SI unit for speed?
What is the SI unit for speed?
The SI unit used to measure how fast something is moving.
How do you calculate average speed?
How do you calculate average speed?
A formula used to calculate the average rate of movement over a specific distance and time.
What is non-uniform motion?
What is non-uniform motion?
Motion where an object's speed changes over time, like accelerating or decelerating.
Study Notes
Units of Speed
- The SI unit of speed is meter per second (m/s)
Calculating Average Speed
- The formula to calculate average speed is: average speed = total distance / total time taken
Types of Motion
- Non-uniform motion is exemplified by a car traveling around a circular track, as its velocity changes constantly due to the change in direction
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