ATI TEAS 7
physics
1. What is the law of conservation of energy?
- A. Energy cannot be created, only destroyed
- B. Energy can be created but not destroyed
- C. Energy can neither be created nor destroyed, only transformed from one form to another
- D. Energy is always created in any process
Correct answer:
Rationale: According to the law of conservation of energy, the total energy in a closed system remains constant; it can change forms but cannot be created or destroyed.
2. Two scientists analyze the same data set on climate change, but they reach different conclusions. What is the MOST likely reason for this difference?
- A. One scientist has more experience than the other.
- B. They used different statistical methods.
- C. They have different personal biases.
- D. One scientist has access to additional data.
Correct answer: B
Rationale: Different analysis methods can lead to different interpretations, even with the same data. Biases and experience might play a role but are less likely the primary cause.
3. Which property of a substance refers to the force exerted on an object due to gravity?
- A. Mass
- B. Weight
- C. Density
- D. Volume
Correct answer:
Rationale: Weight is the measure of the force exerted on an object due to gravity. It is calculated as mass multiplied by the acceleration due to gravity.
4. Identify the compound-complex sentence in the following options:
- A. The baker decorated the cake, and then he presented it proudly.
- B. Although it was raining, the children played outside.
- C. When the sun rises, the birds begin to sing.
- D. He enjoyed reading the book because it was suspenseful.
Correct answer: D
Rationale: A compound-complex sentence contains at least two independent clauses and at least one dependent clause.
5. Which organelle is responsible for breaking down macromolecules, such as proteins, carbohydrates, and lipids, into their smaller building blocks?
- A. Golgi apparatus
- B. Mitochondria
- C. Lysosomes
- D. Endoplasmic reticulum
Correct answer: C
Rationale: Rationale: Lysosomes are membrane-bound organelles containing digestive enzymes that break down macromolecules, such as proteins, carbohydrates, and lipids, into their smaller building blocks. These enzymes help in the process of intracellular digestion and recycling of cellular components. The Golgi apparatus is involved in processing and packaging proteins for secretion or for use within the cell. Mitochondria are responsible for producing energy in the form of ATP through cellular respiration. The endoplasmic reticulum is involved in protein synthesis and lipid metabolism.
6. What effect does doubling the net force applied to an object have on its acceleration, assuming mass remains constant?
- A. Acceleration doubles
- B. Acceleration is halved
- C. Acceleration remains the same
- D. Acceleration quadruples
Correct answer: a
Rationale: According to Newton's second law (F = ma), if mass remains constant and force doubles, acceleration also doubles.
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