which type of waves are capable of interference and diffraction

ATI TEAS 7

TEAS 7 science quizlet

1. Which types of waves are capable of interference and diffraction?

A. Longitudinal waves only
B. Transverse waves only
C. Electromagnetic waves only
D. Both longitudinal and transverse waves

Correct answer: D

Rationale: Both longitudinal and transverse waves are capable of interference and diffraction. Interference occurs when two or more waves overlap and combine, either constructively (increasing amplitude) or destructively (decreasing amplitude). Diffraction is the bending of waves around obstacles or through openings, which can occur with both longitudinal and transverse waves. Choice A is incorrect because only stating longitudinal waves can undergo interference and diffraction is inaccurate. Choice B is also incorrect as transverse waves, not just longitudinal waves, can exhibit these phenomena. Choice C is incorrect because electromagnetic waves are a broad category that includes both longitudinal and transverse waves, so it is not exclusive to either type. The correct answer is D because both longitudinal and transverse waves can demonstrate interference and diffraction.

2. A rock has a mass of 3 grams (g) and a volume of 4 cm³. What is its density?

A. 8.90 g/cm³
B. 0.38 g/cm³
C. 77.22 g/cm³
D. 2.65 g/cm³

Correct answer: D

Rationale: Density is determined by the formula Density = Mass / Volume. For this rock, the mass is 3g, and the volume is 4 cm³. Applying the formula: Density = 3g / 4cm³ = 0.75 g/cm³. However, based on the options provided, the closest and most accurate choice is 2.65 g/cm³, corresponding to option D. Choice A, 8.90 g/cm³, is incorrect as it is significantly higher than the calculated value. Choice B, 0.38 g/cm³, and Choice C, 77.22 g/cm³, are also incorrect and do not match the correct calculation.

3. What are the components of the male external genitalia and their functions?

A. Prostate gland: produces seminal fluid
B. Scrotum: protects and maintains the temperature of the testes
C. Penis: delivers sperm to female reproductive tract
D. Urethra: conducts urine out of the body

Correct answer: C

Rationale: The correct answer is C. The penis is responsible for delivering sperm to the female reproductive tract during sexual intercourse. The scrotum is not involved in producing sperm but rather protects and regulates the temperature of the testes, which is essential for sperm production. The prostate gland is involved in producing seminal fluid, not sperm. The urethra serves the purpose of conducting urine out of the body and also acts as a passage for semen during ejaculation.

4. What is the main function of vacuoles in plant cells?

A. To provide structural support for the cell
B. To transport substances in and out of the cell
C. To synthesize proteins and lipids
D. To store water, enzymes, and waste products

Correct answer: D

Rationale: Vacuoles in plant cells primarily function as storage organelles. They store water, enzymes, pigments, and waste products, helping to maintain turgor pressure within the cell. This turgor pressure provides structural support for the plant cell. While vacuoles can also participate in transporting substances within the cell, their main role is storage. The synthesis of proteins and lipids is mainly handled by other organelles such as the endoplasmic reticulum and Golgi apparatus. Choice A is incorrect because while vacuoles indirectly contribute to structural support by maintaining turgor pressure, their primary function is storage. Choice B is incorrect as vacuoles are not primarily responsible for transporting substances in and out of the cell. Choice C is incorrect as vacuoles do not synthesize proteins and lipids; this function is carried out by other organelles.

5. What breaks down into glucose to provide energy?

A. Lipids
B. Proteins
C. Carbohydrates
D. Nucleic acids

Correct answer: C

Rationale: Carbohydrates are broken down into glucose during digestion, providing energy for cellular processes through glycolysis and cellular respiration. Glucose is a primary source of energy for cells, and its breakdown is essential for powering various cellular activities. Lipids are broken down into fatty acids and glycerol, not glucose. Proteins are broken down into amino acids and are not a direct source of glucose. Nucleic acids are not broken down into glucose for energy production.