Question

which of the following would not be a likely hypothesis for an expirement testing the surface friction of sandpaper ,glass and gravel if a toy car is allowed to roll down each an incline?
A. belive the glass will create the leas amountof friction because it is a smooth surface
b. believe the gravel will creat the most friction because it is the roughtest surface.
c. believe the glass will create the least amount of friction the sandpaper a medium amount of friction and the gravel the most friction based on their textures.
d. The glass we create the most friction and therefore the slow a car down the most.

Answer 1

really, all of these are okay hypotheses... but i would go with C. because if tries to classify all the variables and rank them--really you should try and only have one variable in a hypothesis.

Answer 2

It says not a likely hypothesis.

Answer 3

indeed, which is why I choose C., like i said it tries to classify which one of the variables will be where in reference to one another, but really you should have 3 different hypotheses for that and let the data tell you which is where.

Answer 4

It's D. By Common sense, Glass should have the less surface friction, therefore D is a false premise, making it NOT a suitable hypothesis.

Answer 5

(PS: Also note that 3 other sentences starts with "believe", Choice D doesn't start with it, meaning it's a conclusive statement. Hypotheses do not have Conclusive statements.)

Answer 6

@Vernard_Mercader_PhD just because it is not true does not mean that it is not a valid hypothesis. Choice D as a hypothesis, will surely fail as an answer during the observation phase--but this does not mean it is not a valid hypothesis. Overall, I find this specific question to be rather silly, though.