ATI TEAS 7
Physics
1. A spring with a spring constant of 100 N/m is stretched 0.2 m from its equilibrium position. What is the potential energy stored in the spring?
- A. 2 J
- B. 4 J
- C. 8 J
- D. 20 J
Correct answer: B
Rationale: Potential energy in a spring is calculated as 1/2 * k * x², where k is the spring constant and x is the displacement from equilibrium. Therefore, the potential energy is 1/2 * 100 N/m * (0.2 m)² = 4 J.
2. What happens to the acceleration of an object when the force acting on it is increased, assuming the mass remains constant?
- A. Acceleration increases
- B. Acceleration decreases
- C. Acceleration remains constant
- D. Acceleration becomes zero
Correct answer: a
Rationale: According to Newton's second law (F = ma), if mass is constant and force increases, acceleration also increases.
3. Which of the following is an example of an aromatic compound?
- A. Ethanol
- B. Toluene
- C. Acetone
- D. Butanal
Correct answer: B
Rationale: Toluene is an aromatic compound. The other choices are not aromatic compounds.
4. Which of the following is a risk factor for developing kidney stones?
- A. Consuming a diet rich in fruits and vegetables
- B. Maintaining adequate hydration with water
- C. Having a family history of kidney stones
- D. Regularly engaging in moderate exercise
Correct answer: C
Rationale: Having a family history of kidney stones is a risk factor for developing them because genetics play a role in kidney stone formation. Individuals with a family history are more likely to inherit genetic factors that increase the likelihood of developing kidney stones. While consuming a diet rich in fruits and vegetables, maintaining adequate hydration with water, and regularly engaging in moderate exercise are generally healthy habits that can help prevent kidney stones, they are not direct risk factors for developing them. Therefore, option C, having a family history of kidney stones, is the correct answer.
5. Which of the following structures plays a crucial role in controlling the cell cycle and preventing uncontrolled cell growth?
- A. The centrioles
- B. The nucleolus
- C. The Golgi apparatus
- D. The endoplasmic reticulum
Correct answer: A
Rationale: Rationale: - Centrioles are cylindrical structures found in animal cells that play a crucial role in organizing the spindle fibers during cell division (mitosis). They are involved in the separation of chromosomes during cell division, ensuring that each daughter cell receives the correct number of chromosomes. - Centrioles are also involved in the formation of cilia and flagella, which are important for cell motility and sensory functions. - The other structures listed in the options (nucleolus, Golgi apparatus, and endoplasmic reticulum) do not directly play a role in controlling the cell cycle and preventing uncontrolled cell growth.
6. What is the formula to calculate acceleration?
- A. Acceleration= Mass Force ​
- B. Acceleration= Force Mass ​
- C. Acceleration= Time Distance ​
- D. Acceleration= Time Change in Velocity ​
Correct answer: A
Rationale: Acceleration is calculated as the change in velocity divided by the time taken.
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