TEAS Test 7 science quizlet

TEAS Test 7 science quizlet Related

Review TEAS Test 7 science quizlet related questions and content

A satellite orbits the Earth at a constant speed. Which force is responsible for its circular motion?

  • A. Gravitational force from the Earth
  • B. Thrust from the satellite's engine
  • C. Friction between the satellite and the atmosphere
  • D. Normal force from the Earth's surface
Correct Answer: A

Rationale: The gravitational force from the Earth is responsible for keeping the satellite in its circular orbit. This force provides the necessary centripetal force required to maintain the circular motion of the satellite. The gravitational force acts as the centripetal force, pulling the satellite towards the center of the Earth, thereby keeping it in its circular path. Choices B, C, and D do not provide the necessary force to keep the satellite in its circular path. Thrust from the satellite's engine would change the speed or direction of the satellite, not maintain its circular path. Friction between the satellite and the atmosphere would act as a resistive force, slowing down the satellite rather than maintaining its orbit. The normal force from the Earth's surface is perpendicular to the surface and does not contribute to the circular motion of the satellite. Therefore, the correct answer is A, as the gravitational force acts as the centripetal force to keep the satellite in its circular path around the Earth.

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What is the difference between a prokaryotic cell and a eukaryotic cell?

  • A. Prokaryotic cells have a nucleus, while eukaryotic cells do not
  • B. Eukaryotic cells have a nucleus, while prokaryotic cells do not.
  • C. Prokaryotic cells have membrane-bound organelles, while eukaryotic cells do not.
  • D. Eukaryotic cells have membrane-bound organelles, while prokaryotic cells do not.
Correct Answer: B

Rationale: - Prokaryotic cells are simpler and do not have a true nucleus. Their genetic material is located in the nucleoid region, which is not enclosed by a membrane.
- Eukaryotic cells are more complex and have a true nucleus that houses the genetic material, enclosed within a nuclear membrane.
- Both prokaryotic and eukaryotic cells have organelles, but eukaryotic cells have membrane-bound organelles such as mitochondria, endoplasmic reticulum, and Golgi apparatus, while prokaryotic cells lack these membrane-bound organelles.

What is the main factor limiting population growth in K-strategists?

  • A. Predation
  • B. Availability of resources
  • C. Competition
  • D. Disease
Correct Answer: B

Rationale: K-strategists are species with a low reproductive rate that invest more resources in raising fewer offspring. These species typically live in stable environments with limited resources. The main factor limiting population growth in K-strategists is the availability of resources such as food, shelter, and space. When resources are scarce, K-strategists may struggle to find enough to support their population size, leading to reduced reproductive success and population growth. While predation, competition, and disease can also impact population growth, the primary limiting factor for K-strategists is the availability of resources.

Cartilage is a flexible connective tissue found in the:

  • A. Center of long bones
  • B. Joints between bones
  • C. Muscle tissue
  • D. Walls of blood vessels
Correct Answer: B

Rationale: Cartilage is a flexible connective tissue found in the joints between bones. It provides cushioning and support for the bones, allowing smooth movement and reducing friction between them. Cartilage acts as a shock absorber and helps maintain the structural integrity of the joints. Choices A, C, and D are incorrect because cartilage is not typically found in the center of long bones, muscle tissue, or the walls of blood vessels. Cartilage primarily functions in providing structural support and flexibility in joints.

What phenomenon occurs when light passes through a medium without changing direction, such as when passing through a window?

  • A. Diffraction
  • B. Reflection
  • C. Dispersion
  • D. Transmission
Correct Answer: D

Rationale: The correct answer is 'Transmission.' Transmission refers to the phenomenon where light passes through a medium without changing direction, as observed when light passes through a window. Diffraction involves the bending of light waves around obstacles, reflection is the bouncing back of light waves from a surface, and dispersion is the separation of light into its different colors. In this case, the question specifically asks about the situation where light passes through a medium without changing direction, which aligns with the process of transmission.

As a water wave approaches a shallow beach, what happens to its speed, wavelength, and frequency?

  • A. Speed increases, wavelength decreases, frequency increases.
  • B. Speed decreases, wavelength decreases, frequency remains the same.
  • C. Speed increases, wavelength increases, frequency decreases.
  • D. Speed, wavelength, and frequency remain the same.
Correct Answer: B

Rationale: As a water wave approaches a shallow beach, the speed of the wave decreases due to the change in medium from deep to shallow water. According to the wave equation (speed = frequency x wavelength), if the speed decreases and the frequency remains the same, the wavelength must also decrease to maintain the equation balanced. This phenomenon occurs due to the wavefronts being slowed down by the shallower water, causing the wavelength to decrease while the frequency remains constant. Choice A is incorrect as the speed of the wave decreases in shallow water. Choice C is incorrect because the speed increases in deep water, not in shallow water. Choice D is incorrect as all the wave characteristics change when moving from deep to shallow water.

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