Question: Waves with shorter wavelengths have more energy.  Mo has a wave with a short wavelength. He notices the wavelength growing over time. The wave now has less or more energy?
Answer: less

Question: A: As the car approaches the radar gun, the reflected microwaves get bunched up in front of the car. Therefore, the waves the receiver detects have a higher frequency than they would if they were being reflected from a stationary object. The faster the car is moving, the greater the increase in the frequency of the waves.  If Mona is bouncing radar waves off a test car when training to be a policewoman and she notices the frequency of the waves returning to her radar gun is lower then it was before, what is happening to the car she is pointing the gun at decreasing in speed or increasing in speed?
Answer: decreasing in speed

Question: Faster-moving water has more energy.  If Jim decreased the speed of water flowing out of his bathroom tap, what would happen to the amount of energy being transferred by the water would increase or would decrease?
Answer:
would decrease