Longer wavelength electromagnetic waves have lower frequencies, and shorter wavelength waves have higher frequencies. Having read the above passage, choose the right answer to the following question (choices are higher or or lower frequencies. ): For radio transmissions, longer wavelength waves have higher or or lower frequencies.?
lower frequencies.

(Question)
The more current, the stronger the electromagnet. Having read the above passage, choose the right answer to the following question (choices are decrease it or increase it ): Dan was excited to try out an electromagnet and was happy when it was very effective. He knew however that if he changed the current he could make it weaker. How should he adjust the current decrease it or increase it?
(Answer)
decrease it

Ques: The farther apart you move your hands, the stronger the force of the rubber band pulling your hands together. Having read the above passage, choose the right answer to the following question (choices are increase or decrease ): The pulling force of a rubber band will increase or decrease when you move your hands together?
Ans: decrease

(Q).
The darker the urine, the less water it contains. Having read the above passage, choose the right answer to the following question (choices are yesterday morning or today ): Mona urinated yesterday morning and the urine was very light. When she urinated today the urine was very dark. Which urination contained more water yesterday morning or today?
(A).
yesterday morning

Ques:Low food supply or a lack of space can lower birth rates, increase death rates, or lead to emigration. Having read the above passage, choose the right answer to the following question (choices are lower or higher ): Tasha is studying birth rates in various countries. She looks at two countries. In South Africa, the food supply is currently lower than in Australia. Because of this, the birth rate in South Africa, compared to Australia, will be lower or higher?

Ans:lower

Ques: The full box is harder to move because it has greater mass and therefore greater inertia. Having read the above passage, choose the right answer to the following question (choices are red wagon or blue wagon ): Sally is pulling two wagons. The red wagon is full of sand, and the blue wagon is empty. The wagon that will be more difficult to pull is the red wagon or blue wagon?
Ans:
red wagon