ATI TEAS 7
Physics
1. An object is thrown at an angle. Which of the following forces acts HORIZONTALLY on the object during its flight?
- A. Gravitational force
- B. Normal force from the ground
- C. Air resistance
- D. The force of throwing
Correct answer: C
Rationale: Gravitational force acts downwards, normal force is perpendicular to motion at the launch point, and the throwing force is gone after release. Only air resistance acts continuously to oppose horizontal motion.
2. Which property of a substance measures the amount of matter per unit volume?
- A. Density
- B. Mass
- C. Weight
- D. Volume
Correct answer: a
Rationale: Density is the property that measures the amount of matter (mass) per unit volume of a substance. It is calculated as mass divided by volume.
3. How many moles of water are produced when 0.5 moles of methane (CH4) react with excess oxygen?
- A. 0.5 moles
- B. 1 mole
- C. 2 moles
- D. 3 moles
Correct answer: c
Rationale: The balanced equation is CH4 + 2O2 → CO2 + 2H2O, indicating a 1:2 ratio between CH4 and H2O.
4. Which type of fiber is insoluble and promotes gut motility?
- A. Pectin
- B. Cellulose
- C. Beta-gluca
- D. Guar gum
Correct answer: B
Rationale: Rationale: A) Pectin is a soluble fiber found in fruits and vegetables. It forms a gel-like substance in the gut and can help lower cholesterol levels. B) Cellulose is an insoluble fiber found in plants, particularly in the cell walls of fruits, vegetables, and whole grains. It adds bulk to the stool and promotes gut motility by aiding in the movement of food through the digestive system. C) Beta-glucan is a soluble fiber found in oats and barley. It can help lower cholesterol levels and improve blood sugar control. D) Guar gum is a soluble fiber derived from guar beans. It can help with digestion and may have a role in managing blood sugar levels. In this case, the question specifically asks for the type of fiber that is insoluble and promotes gut motility, which is characteristic of cellulose.
5. 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.
6. Which sentence uses comma splices incorrectly?
- A. The baker kneaded the dough, flour dusted her apron, and the oven warmed up.
- B. The mountains, shrouded in mist, seemed to disappear into the clouds.
- C. He arrived late, having forgotten his keys, and the meeting had already started.
- D. The movie, despite its flaws, was surprisingly enjoyable.
Correct answer: C
Rationale: Option (c) incorrectly combines two independent clauses with only a comma. A semicolon or conjunction is needed
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