Which option is a scalar quantity?
(Select all that apply)
4 m
2 m north
-8 m/s
1.5 mph
is it the first and third one?
Yes, the first and third options are scalar quantities.
A scalar quantity is a type of measurement that is described only by its magnitude or numerical value. It does not have a direction associated with it.
In this case, 4 m is a scalar quantity because it is a measurement of distance (magnitude) without any direction. Similarly, -8 m/s is a scalar quantity because it represents speed (magnitude) without a specific direction.
Yes, that is correct. The first option, 4 m, is a scalar quantity because it represents a measurement of distance only and does not have a direction associated with it. The third option, -8 m/s, is also a scalar quantity because it represents a measurement of speed or velocity, which is a scalar quantity that does not have a specified direction.
yes, and also the 4th
odd, that you got #3, but not #4. They're both just speeds.