Consistent Units
Think about the situation described below. A number of questions based on this situation are posed afterwards, each having 2 possible responses (WRONG or CONSISTENT). We'll do some (but probably not all) of these questions in the lectures when you will all be asked to vote on which answer you think is correct. (Soon afterwards, you'll be able to see your responses, and those of the whole class at EVAF.)
1
Press 1
to signal WRONG2
Press 2
to signal CONSISTENTThe symbols appearing in the equations below have the following meaning:
t represents a time | M represents a mass |
v represents a speed | E represents an energy |
F represents a force | h represents a distance |
Some of the equations are necessarily wrong. Which?
- h/v=t
- E=Mv
- E/h=F
- E/M=vh