ATI TEAS 7
Mathematics
1. You need to buy cardboard to cover a rectangular box with dimensions 40cm by 30cm by 25cm. Considering only the exterior surfaces (not flaps or openings), how much cardboard do you need (assume one sheet covers 0.5 sq m)?
- A. 0.3 sq m
- B. 0.6 sq m
- C. 1.2 sq m
- D. 1.8 sq m
Correct answer: C
Rationale: Calculate the areas of each side and add them up for the total surface area. Divide by the coverage area per sheet to determine the number of sheets needed.
2. When magnesium metal reacts with hydrochloric acid, hydrogen gas is produced. What evidence suggests a chemical reaction is occurring?
- A. A change in color
- B. The formation of a gas
- C. Dissolving in a liquid
- D. No change in temperature
Correct answer: B
Rationale: The correct answer is B: 'The formation of a gas.' When magnesium metal reacts with hydrochloric acid, hydrogen gas is produced as one of the products. The formation of a gas is a clear indicator of a chemical reaction taking place. This is known as a gas evolution reaction, where a gas is produced as a result of a chemical reaction. The other options do not specifically indicate a chemical reaction. A change in color or dissolving in a liquid could occur in physical changes as well, and no change in temperature does not necessarily rule out a chemical reaction as some reactions are endothermic or exothermic.
3. Which type of epithelium lines the inner surface of blood vessels?
- A. Simple squamous epithelium
- B. Simple columnar epithelium
- C. Stratified squamous epithelium
- D. Stratified columnar epithelium
Correct answer: A
Rationale: The correct answer is A. Simple squamous epithelium lines the inner surface of blood vessels due to its thin structure and ability to facilitate easy diffusion of gases and nutrients between blood and surrounding tissues. This type of epithelium is well suited for areas where rapid exchange of materials is important, such as the lining of blood vessels. Simple columnar epithelium is typically found in areas where absorption and secretion occur, like the lining of the intestines. Stratified squamous epithelium is more commonly found in areas subject to wear and tear, such as the skin. Stratified columnar epithelium is not typically found in the inner surface of blood vessels, making it an incorrect choice.
4. A car brakes to a stop on a level road. Which of the following forces does NOT do work on the car?
- A. The braking force applied by the wheels
- B. The normal force from the road
- C. The gravitational force on the car
- D. The friction force between the tires and the road
Correct answer: B
Rationale: While the other forces do work by changing the car's motion or energy, the normal force acts perpendicular to the motion and doesn't contribute to the car's stopping.
5. A large geographic area characterized by similar climate, plants, and animals is called a:
- A. Population
- B. Community
- C. Biome
- D. Ecosystem
Correct answer: C
Rationale: Rationale: A) Population refers to a group of individuals of the same species living in a specific area. B) Community refers to all the populations of different species living and interacting in a particular area. C) Biome is a large geographic area characterized by similar climate, plants, and animals. Biomes are defined by factors such as temperature, precipitation, and vegetation types. D) Ecosystem refers to a community of living organisms interacting with each other and their physical environment. An ecosystem can be part of a biome.
6. The beautiful flowers brightened the room. Which word is the adverb form of the adjective "beautiful"?
- A. beautiful
- B. beautifully
- C. beautification
- D. beautify
Correct answer: B
Rationale: Adverbs are formed from adjectives by adding "-ly" (usually).
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