ATI TEAS 7
Chemistry
1. Which of the following functional groups has the highest priority according to the Cahn-Ingold-Prelog (CIP) ranking system?
- A. Alcohol (OH)
- B. Aldehyde (CHO)
- C. Carboxylic Acid (COOH)
- D. Amine (NH2)
Correct answer: C
Rationale: According to the Cahn-Ingold-Prelog (CIP) ranking system, the priority of functional groups is determined based on the atomic number of the atoms directly bonded to the functional group. In this case, carboxylic acid (COOH) has the highest priority because the carbon atom is directly bonded to two oxygen atoms, which have higher atomic numbers than carbon. The alcohol (OH) group has a lower priority as the oxygen atom is only bonded to hydrogen, while the aldehyde (CHO) and amine (NH2) groups have lower priorities compared to carboxylic acid. Therefore, option C, carboxylic acid, is the correct answer as it has the highest priority in the CIP ranking system.
2. What is the unit of measurement for momentum?
- A. Newton-second (N·s)
- B. Kilogram-meter (kg·m)
- C. Joule (J)
- D. Meter per second (m/s)
Correct answer: A
Rationale: Momentum is defined as the product of an object's mass and its velocity. The unit of mass is kilograms (kg) and the unit of velocity is meters per second (m/s). Therefore, the unit of momentum is kilogram-meter per second (kg·m/s). By Newton's second law of motion (F = ma), force is measured in Newtons (N), which is equivalent to kg·m/s². Therefore, multiplying the unit of force (N) by the unit of time (s) gives the unit of momentum as Newton-second (N·s).
3. Which type of waves travel by causing particles in the medium to vibrate parallel to the direction of wave travel?
- A. Transverse waves
- B. Longitudinal waves
- C. Surface waves
- D. Electromagnetic waves
Correct answer: B
Rationale: Longitudinal waves are waves in which the particles of the medium vibrate parallel to the direction of wave travel. This type of wave is characterized by compressions and rarefactions in the medium, where the particles move back and forth in the same direction as the wave. Transverse waves, on the other hand, cause particles to vibrate perpendicular to the direction of wave travel. Surface waves are a combination of both longitudinal and transverse motion, while electromagnetic waves do not require a medium and can travel through a vacuum.
4. When a car brakes to a stop, friction between the tires and the road acts as:
- A. A balanced force
- B. An unbalanced force causing acceleration
- C. An unbalanced force causing the car to remain at rest
- D. No force at all
Correct answer: B
Rationale: Friction opposes the car's motion, acting as an unbalanced force that decelerates the car and brings it to a stop.
5. Which of the following is evidence that the controlling process is effective?
- A. The things that were planned are done
- B. Physicians do not complain.
- C. Employees are contended
- D. There is an increase in customer satisfaction rate.
Correct answer: A
Rationale: The correct answer is A: 'The things that were planned are done.' This is evidence that the controlling process is effective because it indicates that the organization is able to execute its plans successfully. When planned tasks and activities are completed as intended, it shows that the controlling function is ensuring that operations are on track and that deviations are being corrected. The completion of planned tasks also demonstrates that resources are being effectively utilized and that performance is being monitored and controlled. The other options do not directly relate to the effectiveness of the controlling process. Physicians not complaining, employees being contented, and an increase in customer satisfaction rate could be influenced by various factors and may not necessarily be solely attributed to the effectiveness of the controlling process.
6. Which of the following is NOT a type of intermolecular force?
- A. Hydrogen bonding
- B. Dipole-dipole interactions
- C. Ionic bonding
- D. London dispersion forces
Correct answer: C
Rationale: Ionic bonding is a type of intramolecular force, holding ions together within an ionic compound. Intermolecular forces are responsible for the interactions between individual molecules.
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