(Q).
Use information from the paragraph to answer the question. Paragraph : Rougher surfaces have more friction between them than smoother surfaces. Question: A piece of sandpaper was rubbed across a glass table, then the sandpaper was rubbed across some gravel. The friction will be less between the sandpaper and the glass table or or the sandpaper and the gravel.?
(A).
the sandpaper and the glass table or

(Q).
Use information from the paragraph to answer the question. Paragraph : If two objects have the same mass, the object with the higher temperature has greater thermal energy. Question: Johnny was was playing with chalk outside. His mom called him in for lunch, while he was inside his red chalk sat in the sun, and his blue chalk was in the shade. When Johnny returned outside and picked up the red and blue which had a higher temperature the red chalk or the blue chalk?
(A).
the red chalk

(Q).
Use information from the paragraph to answer the question. Paragraph : This means that as wavelengths get shorter, more waves move past a particular spot in the same amount of time. Question: What happens to the rate at which waves move past a particular spot if Jim increases the wavelength of a sound wave increases or decreases?
(A).
decreases