ATI TEAS 7
physics
1. Which property of matter remains constant regardless of changes in gravity?
- A. Mass
- B. Weight
- C. Volume
- D. Density
Correct answer: A
Rationale: Mass is a measure of the amount of matter in an object and remains constant regardless of changes in gravity. Weight, on the other hand, is the force of gravity acting on an object's mass and can vary depending on the strength of gravity. Volume is the amount of space an object occupies, which can change depending on the environment, and density is the mass of an object per unit volume, which can also change with variations in gravity.
2. Organisms that break down dead organisms and return nutrients to the environment are called:
- A. Producers
- B. Decomposers
- C. Consumers
- D. Parasites
Correct answer: B
Rationale: Rationale: Decomposers are organisms that break down dead organisms and organic matter, such as bacteria, fungi, and some insects. They play a crucial role in the ecosystem by breaking down complex organic materials into simpler forms, releasing nutrients back into the environment for other organisms to use. Producers (option A) are organisms that produce their own food through photosynthesis, consumers (option C) are organisms that consume other organisms for energy, and parasites (option D) are organisms that live on or in another organism and benefit at the host's expense.
3. In the phrase "a drop in the bucket," "bucket" represents:
- A. A literal container
- B. A large quantity
- C. A specific goal
- D. An obstacle
Correct answer: B
Rationale: The phrase signifies that something is insignificant compared to a much larger amount.
4. Which organelle is responsible for carrying out photosynthesis in plant cells?
- A. Golgi apparatus
- B. Mitochondria
- C. Chloroplasts
- D. Lysosomes
Correct answer: C
Rationale: Rationale: A) Golgi apparatus: The Golgi apparatus is responsible for modifying, sorting, and packaging proteins for secretion or for use within the cell. It is not involved in photosynthesis. B) Mitochondria: Mitochondria are known as the powerhouse of the cell and are responsible for generating energy in the form of ATP through cellular respiration. They are not involved in photosynthesis. C) Chloroplasts: Chloroplasts are the organelles responsible for carrying out photosynthesis in plant cells. They contain chlorophyll, a pigment that captures light energy and converts it into chemical energy in the form of glucose. D) Lysosomes: Lysosomes are membrane-bound organelles that contain digestive enzymes to break down waste materials and cellular debris. They are not involved in photosynthesis. Therefore, the correct answer is C) Chloroplasts, as they are specifically responsible for carrying out photosynthesis in plant
5. What is the largest muscle in the human body?
- A. Gluteus maximus (buttocks)
- B. Quadriceps femoris (thighs)
- C. Erector spinae (back)
- D. Pectoralis major (chest)
Correct answer: A
Rationale: The gluteus maximus is the largest muscle in the human body, located at the back of the hip and extending from the sacrum to the femur. It is a powerful muscle that plays a crucial role in extending the hip joint, enabling walking, running, and climbing stairs.
6. Which statement accurately defines power?
- A. Power is the amount of energy stored in an object
- B. Power is the rate at which energy is transferred or work is done
- C. Power is the maximum force exerted by an object
- D. Power is the resistance of an object to change in motion
Correct answer: b
Rationale: Power measures how quickly work is done or energy is transferred or converted.
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