A scientific experiment that showed a favorite model to be wrong should be disregarded
What will be an ideal response?
As scientists, we should not have "favorite" models. There are models that have
not been shown to be incorrect and that we accept as a consequence, but we must be
prepared to throw it away if it can be shown to be incorrect.
It is possible that an experiment is set up incorrectly, or that it is set up correctly but is
misinterpreted. So scientists are not overly hasty in throwing models away. For this reason,
scientific experiments are described in enough detail to allow others to repeat them and are
repeated, to be as certain of their meaning as possible.
If, after such careful checking, the model is still found to be an incorrect description, it must
be discarded.
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A swimmer heading directly across a river 200 m wide reaches the opposite bank in during which time she is swept downstream 480 m. (a) How fast can she swim in still water? (b) What is the speed of the current?
What will be an ideal response?
Substitute the correct prefix to the fun-word "103-mockingbird"
A) deci B) tera C) peta D) pico E) kilo
The potential energy of a spring of constant k that has been stretched a distance x is given by
A. (½)kx. B. kx2. C. (½)kx2. D. (½)k/x. E. kx.
If the fastest you can safely drive is what is the longest time you can stop for dinner if you must travel in total?
A) 1.0 h B) 1.3 h C) 1.4 h D) You can't stop at all.