ATI TEAS 7
physics
1. What effect does doubling the net force applied to an object have on its acceleration, assuming mass remains constant?
- A. Acceleration doubles
- B. Acceleration is halved
- C. Acceleration remains the same
- D. Acceleration quadruples
Correct answer: a
Rationale: According to Newton's second law (F = ma), if mass remains constant and force doubles, acceleration also doubles.
2. Which of the following is the main organ responsible for regulating sleep?
- A. Thalamus
- B. Hypothalamus
- C. Pituitary gland
- D. Pineal gland
Correct answer: B
Rationale: Rationale: The hypothalamus is the main organ responsible for regulating sleep. It plays a crucial role in controlling the body's circadian rhythm, which is the internal clock that regulates the sleep-wake cycle. The hypothalamus receives input from the eyes about light and darkness, which helps in determining when it is time to sleep or wake up. It also regulates the production of melatonin by the pineal gland, which is a hormone that helps control sleep patterns. While the thalamus is involved in relaying sensory information to the brain, the pituitary gland is responsible for producing and releasing hormones, and the pineal gland produces melatonin under the control of the hypothalamus.
3. "Ironic" and "serious" are:
- A. synonyms (have the same meaning)
- B. antonyms (have opposite meanings)
- C. homonyms (sound the same but have different meanings)
- D. none of the above
Correct answer: B
Rationale: "Ironic" means the opposite of "serious."
4. How does the amplitude of a wave relate to its intensity or loudness?
- A. They are inversely proportional.
- B. They are directly proportional.
- C. They have no relationship.
- D. Amplitude affects frequency, not intensity.
Correct answer: B
Rationale: Higher amplitude corresponds to larger displacement from equilibrium and translates to higher intensity or perceived loudness in sound waves.
5. What enzyme plays a key role in breaking down carbohydrates in the small intestine?
- A. Pepsin
- B. Lipase
- C. Amylase
- D. Trypsin
Correct answer: C
Rationale: Amylase, produced by the pancreas and salivary glands, breaks down carbohydrates into simple sugars like glucose.
6. A stop sign has five equal sides, each measuring 25cm. What is its perimeter?
- A. 100cm
- B. 125cm
- C. 150cm
- D. 175cm
Correct answer: B
Rationale: Multiply the side length by the number of sides: perimeter = number of sides * side length = 5 * 25cm = 125cm.
Similar Questions
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
$1/ 30 days
- 3,000 Questions with answers
- 30 days access