ATI TEAS 7
Physics
1. What happens to the frequency of a wave when its wavelength is doubled, assuming the speed remains constant?
- A. Frequency remains the same.
- B. Frequency is halved.
- C. Frequency is doubled.
- D. Frequency information is insufficient to determine.
Correct answer: C
Rationale: Since the wave speed is constant, if the wavelength increases, the frequency must decrease to maintain the same energy transfer per unit time.
2. Dendrites are finger-like extensions found on
- A. Muscle cells
- B. Connective tissue cells
- C. Neurons
- D. Epithelial cells
Correct answer: C
Rationale: Dendrites are the primary sites for receiving signals in a neuron. They are specialized extensions that branch out from the cell body of a neuron to receive incoming information from other neurons. These finger-like projections play a crucial role in transmitting electrical impulses and communication within the nervous system. Muscle cells, connective tissue cells, and epithelial cells do not have dendrites as they are not involved in neuronal communication.
3. The scientist discovered a new species of butterfly in the rainforest. What is the past tense of the verb "discover"?
- A. discovers
- B. discovered
- C. discovering
- D. discovery
Correct answer: B
Rationale: The past tense of a verb describes an action that happened in the past.
4. What property of a substance remains constant regardless of its location in the universe?
- A. Mass
- B. Weight
- C. Density
- D. Volume
Correct answer: a
Rationale: Mass is an intrinsic property of matter that remains constant regardless of its location in the universe.
5. The passage implies that achieving energy sustainability requires...
- A. solely relying on renewable energy sources for electricity generation.
- B. a combination of advancements in renewable energy production and management technologies.
- C. prioritizing economic benefits over environmental concerns when making energy choices.
- D. focusing solely on reducing energy consumption without addressing production sources.
Correct answer: B
Rationale: The passage emphasizes the need for both increasing renewable energy and managing its fluctuations, suggesting B as the key to sustainability.
6. Which of the following organs is responsible for churning and mechanically breaking down food?
- A. Small intestine
- B. Large intestine
- C. Stomach
- D. Esophagus
Correct answer: C
Rationale: Rationale: The stomach is responsible for churning and mechanically breaking down food. It contains muscles that contract and relax to mix food with digestive juices, breaking it down into smaller particles. This mechanical digestion process helps prepare the food for further digestion and absorption in the small intestine. The small intestine is primarily responsible for the absorption of nutrients, the large intestine absorbs water and salts, the esophagus is a muscular tube that transports food from the mouth to the stomach.
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