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Nursing Elites

ATI TEAS 7

physics

1. How does the potential energy of an object change when it is compressed?

Correct answer: b

Rationale: When an object is compressed, it stores potential energy due to its altered position or configuration.

2. Two objects with equal masses collide head-on, both initially moving at the same speed. After the collision, they stick together. What is their final velocity?

Correct answer: A

Rationale: In an inelastic collision like this, kinetic energy is not conserved, but momentum is. Since the total momentum before the collision was zero (equal and opposite velocities), it must be zero after the collision as well, resulting in both objects stopping.

3. What is the name of the muscle responsible for pumping blood throughout the body?

Correct answer: D

Rationale: The correct answer is D: Cardiac muscle. The cardiac muscle, also known as the heart muscle, is responsible for pumping blood throughout the body. Unlike voluntary muscles like the bicep, tricep, and deltoid, the cardiac muscle is involuntary and works continuously to pump blood to all parts of the body. It is crucial for maintaining circulation and delivering oxygen and nutrients to tissues. Understanding the role of the cardiac muscle in the circulatory system is essential for grasping the importance of heart health and overall well-being.

4. Which type of isomerism arises due to differences in the arrangement of atoms around a double bond?

Correct answer: C

Rationale: The correct answer is C: Cis-trans isomerism. Cis-trans isomerism, also known as geometric isomerism, arises due to differences in the spatial arrangement of atoms around a double bond. In cis isomers, similar groups are on the same side of the double bond, while in trans isomers, similar groups are on opposite sides. This type of isomerism is specific to compounds with restricted rotation around a double bond, leading to distinct spatial arrangements and different properties. Chain isomerism (A) refers to isomers with different carbon chain arrangements, functional group isomerism (B) involves different functional groups, and stereoisomerism (D) encompasses all isomers that have the same connectivity but differ in spatial arrangement.

5. What property of a wave determines its speed in a given medium?

Correct answer: d

Rationale: The speed of a wave is determined by the properties of the medium it travels through.

6. What mineral is essential for muscle function and can cause cramps if deficient?

Correct answer: B

Rationale: The correct answer is B: Calcium. Calcium is essential for muscle function, including muscle contraction and relaxation. A deficiency in calcium can lead to muscle cramps and spasms. While sodium, potassium, and magnesium are also important for muscle function, calcium specifically plays a crucial role in muscle contractions. Therefore, calcium is the mineral that is essential for muscle function and can cause cramps if deficient.

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