ATI TEAS 7
physics
1. Which type of waves do not require a medium for propagation?
- A. Transverse waves
- B. Longitudinal waves
- C. Electromagnetic waves
- D. Surface waves
Correct answer: c
Rationale: Electromagnetic waves (such as light or radio waves) can travel through a vacuum as they do not require a medium.
2. A major factor influencing the distribution of organisms geographically is:
- A. The availability of specific types of food sources
- B. olerance of organisms to different temperature ranges
- C. Competition for mates within the same species
- D. All of the above
Correct answer: D
Rationale: Rationale: The distribution of organisms geographically is influenced by a variety of factors, including the availability of specific types of food sources (option A). Organisms need to have access to suitable food sources in order to survive and thrive in a particular area. Additionally, the tolerance of organisms to different temperature ranges (option B) is crucial as temperature can greatly impact where certain species can live. Organisms must be able to withstand the temperature conditions of a given environment to survive there. Competition for mates within the same species (option C) can also play a role in the distribution of organisms, as it can affect population sizes and dynamics in different areas. Therefore, all of these factors - food availability, temperature tolerance, and competition for mates - collectively influence the distribution of organisms geographically.
3. Which type of nuclear force is responsible for holding protons and neutrons together in the nucleus of an atom?
- A. Electromagnetism
- B. Gravity
- C. Strong nuclear force
- D. Weak nuclear force
Correct answer: C
Rationale: The incredibly powerful, strong nuclear force overcomes the repulsive electrostatic force between protons, binding them together and stabilizing the nucleus.
4. Which of the following is a unit of measurement for energy?
- A. Watt (W)
- B. Joule (J)
- C. Newton (N)
- D. Kilogram (kg)
Correct answer: b
Rationale: Energy is measured in Joules (J) in the SI unit system.
5. Identify the reflexive pronoun in the sentence: "She prepared herself for the presentation."
- A. herself
- B. she
- C. presentation
- D. for
Correct answer: A
Rationale: "Herself" refers back to the subject "she," making it a reflexive pronoun.
6. What mineral is essential for muscle function and nerve transmission?
- A. Calcium
- B. Iron
- C. Sodium
- D. Potassium
Correct answer: A
Rationale: The correct answer is A: Calcium. Calcium is essential for muscle function and nerve transmission. Muscles require calcium to contract properly, and nerve cells use calcium ions to transmit signals throughout the body. Without an adequate amount of calcium, muscle cramps and nerve dysfunction can occur. Iron is important for oxygen transport in the blood, sodium and potassium are electrolytes important for fluid balance and nerve function, but they are not primarily responsible for muscle function and nerve transmission like calcium.
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