Logo

Nursing Elites

ATI TEAS 7

Chemistry

1. The pH scale is used to indicate the concentration of:

Correct answer: A

Rationale: The pH scale measures the concentration of hydrogen ions in a solution, indicating acidity or basicity.

2. Identify the interjection in the following sentence: Ouch! I stubbed my toe on the table leg.

Correct answer: C

Rationale: Interjections express emotions or sudden feelings. "Ouch" conveys a feeling of pain.

3. What property of a wave determines its speed in a given medium?

Correct answer: d

Rationale: The speed of a wave is determined by the properties of the medium it travels through.

4. An Egyptian model pyramid has a square base side length of 10cm and a height of 8cm. What is its volume?

Correct answer: D

Rationale: Use the formula for volume of a pyramid: (1/3) * base area * height. Calculate the base area (10cm * 10cm = 100 sq cm) and substitute: (1/3) * 100 sq cm * 8cm = 80 cu cm.

5. According to the wave theory of light, the bright fringes observed in a double-slit experiment correspond to:

Correct answer: A

Rationale: The correct answer is A: Constructive interference. According to the wave theory of light, when two light waves meet in phase (crest to crest or trough to trough), they combine to produce a brighter fringe. This is known as constructive interference, leading to the formation of bright fringes in a double-slit experiment. Destructive interference, on the other hand, occurs when two waves are out of phase (crest to trough), resulting in a dimmer or dark fringe. Increased diffraction refers to the bending of light waves around obstacles, not the formation of bright fringes. Total internal reflection is a phenomenon that occurs at the boundary between two different mediums when light is reflected back into the original medium. Therefore, the bright fringes observed in a double-slit experiment correspond to constructive interference.

6. What is the difference between alpha decay and beta decay?

Correct answer: B

Rationale: Alpha decay releases a helium nucleus (2 protons, 2 neutrons), while beta decay releases an electron or positron. - Both processes alter the atomic structure and change the element's identity.

Similar Questions

What is the difference between alpha decay and beta decay?
the relationship between the Pauli exclusion principle and the structure of the atom?
Which type of waves exhibit both longitudinal and transverse motion?
What is the difference between the atomic number and the mass number of an atom?
Which of the following numbers is the greatest common factor (GCF) of 12 and 18?
Which term describes the point where parallel rays of light converge or appear to diverge from after passing through a lens or reflecting off a mirror?

Access More Features

ATI TEAS Premium Plus
$149.99/ 90 days

  • Actual ATI TEAS 7 Questions
  • 3,000 questions with answers
  • 90 days access

ATI TEAS Basic
$99/ 30 days

  • 3,000 Questions with answers
  • 30 days access

Other Courses