ATI TEAS 7
physics
1. What type of energy does a stretched rubber band possess?
- A. Kinetic energy
- B. Potential energy
- C. Thermal energy
- D. Mechanical energy
Correct answer:
Rationale: When a rubber band is stretched, it stores potential energy due to its position or state.
2. What hormone signals the release of digestive enzymes from the pancreas?
- A. Gastrin
- B. Insulin
- C. Glucagon
- D. Secretin
Correct answer: D
Rationale: Rationale: A) Gastrin is a hormone that stimulates the release of gastric acid in the stomach, not digestive enzymes from the pancreas. B) Insulin is a hormone produced by the pancreas that regulates blood sugar levels by facilitating the uptake of glucose into cells, but it does not directly signal the release of digestive enzymes from the pancreas. C) Glucagon is another hormone produced by the pancreas that works opposite to insulin by increasing blood sugar levels, but it is not involved in signaling the release of digestive enzymes from the pancreas. D) Secretin is a hormone released by the small intestine in response to the presence of acidic chyme. It stimulates the pancreas to release bicarbonate to neutralize the acidity of the chyme and also triggers the release of digestive enzymes from the pancreas to aid in digestion. Therefore, secretin is the hormone that signals the release of digestive enzymes from the pancreas.
3. Which element has the highest melting point of any element?
- A. Tungsten
- B. Iron
- C. Platinum
- D. Carbon
Correct answer: D
Rationale: Diamond's strong covalent bonds between carbon atoms make it incredibly resistant to heat and pressure, giving it the highest melting point.
4. What is the main function of energy storage technologies in the context of renewable energy?
- A. Reduce the cost of producing solar and wind power.
- B. Enhance the efficiency of energy transmission and distribution.
- C. Compensate for the intermittent nature of renewable energy sources.
- D. Eliminate the need for fossil fuels in electricity generation.
Correct answer: C
Rationale: Choice C directly addresses the passage's emphasis on managing the fluctuating availability of renewable energy, hence being the main function of storage technologies.
5. A triangular scarf has sides measuring 10cm, 12cm, and 15cm. What is its perimeter?
- A. 27cm
- B. 32cm
- C. 37cm
- D. 45cm
Correct answer: C
Rationale: Simply add the lengths of all sides: perimeter = side1 + side2 + side3 = 10cm + 12cm + 15cm = 37cm.
6. A birdbath has a hemispherical bowl with a diameter of 30cm. What is its volume?
- A. 675 cu cm
- B. 1350 cu cm
- C. 2700 cu cm
- D. 4050 cu cm
Correct answer: C
Rationale: Use half the formula for a sphere's volume: (2/3) * π * (radius)^3. Calculate the radius (15cm) and substitute: (2/3) * π * (15cm)^3 ≈ 2700 cu cm.
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