Podcast
Questions and Answers
What is the relationship between velocity and speed in motion along a straight line?
What is the relationship between velocity and speed in motion along a straight line?
- Velocity is always greater than speed.
- Velocity and speed are unrelated in motion along a straight line.
- Velocity is always less than speed.
- Velocity equals speed in motion along a straight line. (correct)
If a car is accelerating uniformly on a straight road at 5 m/s², how much does its speed increase every second?
If a car is accelerating uniformly on a straight road at 5 m/s², how much does its speed increase every second?
- 3 m/s
- 10 m/s
- 2 m/s
- 5 m/s (correct)
What term is used to describe a negative acceleration?
What term is used to describe a negative acceleration?
- Retardation (correct)
- Uniform motion
- Deceleration
- Acceleration
How does a motion sensor determine the distance of an object from the sensor?
How does a motion sensor determine the distance of an object from the sensor?
What information can be obtained by connecting a datalogger and computer to a motion sensor?
What information can be obtained by connecting a datalogger and computer to a motion sensor?
In a tickertape timer, what does the distance between successive dots represent?
In a tickertape timer, what does the distance between successive dots represent?
What unit of time is used in a tickertape timer to represent 0.15 seconds?
What unit of time is used in a tickertape timer to represent 0.15 seconds?
If an object is decelerating, what can be said about its acceleration?
If an object is decelerating, what can be said about its acceleration?
What term is used to describe the average speed of an object in a tickertape timer?
What term is used to describe the average speed of an object in a tickertape timer?
How does acceleration affect velocity in uniform motion?
How does acceleration affect velocity in uniform motion?
