Wave energy from the ocean can be harnessed to power generators to make electricity. Energy from rides can also be used to make electricity. How would you categorize these two sources of energy

The energy sources described are forms of kinetic energy

Explanation:

Kinetic energy, K.E can be defined as the energy a body possesses due to its state of motion. It is defined by the work done in accelerating a body of known mass at a given starting velocity.

Ocean wave energy is form of the kinetic energy which occurs from the movement of water waves, as the waves are mostly caused by blowing winds over the ocean surface.

Likewise, the energy from rides such as spinning wheels can be used to power turbines.

All these are forms of energy in motion.

1. the question asks the most appropriate, which seems to rule out "all of the above." your choice appears to be the correct one.

2. the protocol described is good for identifying correlation, but not cause and effect. for cause/effect, you need to devise a protocol that will assign the treatment (or not) to groups that have essentially the same "demographics" with respect to all the other variables. your choice regarding control group seems appropriate. random assignment of treatment (choice d) may be appropriate also. (i think you can argue that b and d are just different descriptions of the same method.)

3. d will randomize the birds, but may not guarantee there are 10 in each group. e will do both, so seems the better choice.

comment on question 2

based on the problem statement, it seems clear that confident, attentive drivers are more likely to use daytime running lights. so, the protocol might need to be devised in such a way that the lights would be turned on or off without the driver's knowledge. (an attentive driver will figure it out.) assigning a confident, attentive driver to a group required to drive without running lights might mess with his/her confidence and attentiveness. you don't want your experiment to do that. (nor do you want the experiment to subject a driver to greater risk of accident as a consequence of driving without running lights.) experiments involving human safety are always problematic.

lol for the pointsss