ATI TEAS 7
physics
1. What is the unit of measurement for power?
- A. Joule (J)
- B. Newton (N)
- C. Watt (W)
- D. Kilogram-meter (kg·m)
Correct answer: c
Rationale: Power is measured in watts (W) in the SI unit system.
2. Which of the following types of muscle tissue is found attached to bones and allows for voluntary movement?
- A. Smooth muscle
- B. Cardiac muscle
- C. Skeletal muscle
- D. Connective tissue
Correct answer: C
Rationale: The correct answer is C: Skeletal muscle. Skeletal muscle is the type of muscle tissue that is attached to bones and allows for voluntary movement. This type of muscle is under conscious control, meaning we can choose to contract or relax these muscles to produce movement. Smooth muscle (option A) is found in the walls of internal organs and is not under voluntary control. Cardiac muscle (option B) is found in the heart and also functions involuntarily. Connective tissue (option D) primarily provides support and structure to the body but does not directly enable movement like skeletal muscle does.
3. Which structure connects a muscle to a bone, allowing movement to occur at a joint?
- A. Tendon
- B. Ligament
- C. Cartilage
- D. Bursa
Correct answer: a
Rationale: The correct answer is A: Tendon. Tendons are fibrous connective tissues that connect muscles to bones. They play a crucial role in allowing movement to occur at joints by transmitting the force generated by the muscle to the bone, resulting in movement. Ligaments (option B) connect bone to bone, providing stability to joints. Cartilage (option C) is a smooth, flexible tissue that covers the ends of bones and acts as a cushion. Bursa (option D) is a small fluid-filled sac that reduces friction between tissues. Therefore, tendons are specifically designed to connect muscles to bones for movement at joints.
4. What property of matter refers to the amount of space occupied by an object?
- A. Mass
- B. Volume
- C. Weight
- D. Density
Correct answer: b
Rationale: Volume measures the amount of space occupied by an object.
5. What property of a substance refers to its ability to be drawn into thin wires?
- A. Conductivity
- B. Ductility
- C. Viscosity
- D. Malleability
Correct answer: b
Rationale: Ductility refers to a substance's ability to be drawn into thin wires without breaking.
6. Describe the concept of inertia in terms of Newton's first law.
- A. Objects in motion tend to remain in motion unless acted upon by an external force
- B. Objects at rest tend to remain at rest unless acted upon by an external force
- C. An object's resistance to a change in its state of motion
- D. The force required to lift an object
Correct answer: c
Rationale: Inertia refers to an object's tendency to maintain its current state of motion (either at rest or in motion) unless acted upon by an external force.
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