ATI TEAS 7
physics
1. What type of force allows a car to take a sharp turn while moving in a circular path?
- A. Centripetal force
- B. Tension force
- C. Frictional force
- D. Gravitational force
Correct answer: A
Rationale: Centripetal force is the force that allows an object to move in a circular path. In the case of a car taking a sharp turn, the centripetal force is directed towards the center of the circle, keeping the car moving in a curved path. Tension force is the force transmitted through a string, rope, cable, or wire when it is pulled tight by forces acting from opposite ends. Frictional force opposes the motion of an object and is not the primary force responsible for allowing a car to take a sharp turn. Gravitational force is the force of attraction between two masses and is not directly related to a car taking a sharp turn.
2. Which orbital can hold a maximum of 8 electrons?
- A. s orbital
- B. p orbital
- C. d orbital
- D. f orbital
Correct answer: C
Rationale: d orbital - Each d orbital can hold a maximum of 2 electrons, and there are 5 d orbitals, totaling 10 possible electrons.
3. When light reflects from a surface, what determines the angle of reflection?
- A. The material of the surface
- B. The wavelength of the light
- C. The angle of incidence
- D. The intensity of the light
Correct answer: C
Rationale: The angle of reflection is always equal to the angle of incidence according to the law of reflection, regardless of the material, wavelength, or intensity.
4. Which statement is TRUE about valence electrons?
- A. They are located in the innermost electron shell.
- B. They have the highest binding energy to the nucleus.
- C. They are most likely to participate in chemical bonding.
- D. They have no influence on the element's chemical properties.
Correct answer: C
Rationale: They are most likely to participate in chemical bonding - Valence electrons occupy the outermost shell and are readily involved in forming bonds with other atoms.
5. Acknowledge the organ devoted to blood filtration.
- A. Liver
- B. Kidneys
- C. Spleen
- D. Pancreas
Correct answer: B
Rationale: The kidneys are the primary organs responsible for filtering blood and removing waste products, excess fluids, and toxins. They play a crucial role in maintaining the body's internal environment and regulating blood pressure.
6. A light ray travels from air (refractive index 1.00) into water (refractive index 1.33). What happens to its speed and direction?
- A. Speed increases, direction bends towards the normal.
- B. Speed increases, direction bends away from the normal.
- C. Speed decreases, direction bends towards the normal.
- D. Speed and direction remain unchanged.
Correct answer: A
Rationale: Due to the change in refractive index, the light ray bends towards the normal (water) as it slows down upon entering the denser medium.
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