which law of motion states that for every action there is an equal and opposite reaction
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ATI TEAS 7

Mometrix TEAS 7 science practice test

1. Which law of motion states that for every action, there is an equal and opposite reaction?

Correct answer: C

Rationale: The correct answer is Newton's Third Law of Motion. This law states that for every action, there is an equal and opposite reaction. It means that when one object exerts a force on a second object, the second object exerts an equal force in the opposite direction back on the first object. This fundamental law describes the relationship between the forces acting on two interacting objects. Newton's First Law (Choice A) is known as the law of inertia and states that an object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an external force. Newton's Second Law (Choice B) relates the force acting on an object to its mass and acceleration. The Law of Universal Gravitation (Choice D) describes the force of gravity between two objects with mass and the distance between them.

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

Correct answer: D

Rationale: The speed of a wave in a given medium is determined by the properties of that medium, such as its density and elasticity. While amplitude, wavelength, and frequency are important characteristics of a wave, they do not directly impact its speed in a specific medium. Amplitude refers to the maximum displacement of particles in a wave, wavelength is the distance between two successive points in a wave that are in phase, and frequency is the number of complete oscillations a wave makes in a given time. However, these properties do not dictate the speed of a wave in a particular medium. Therefore, the correct answer is the medium's properties.

3. In the body, muscle tissue is involved in which of the following functions?

Correct answer: D

Rationale: Muscle tissue serves multiple functions in the body, including the generation of body heat, joint stabilization, and maintenance of posture. These functions are essential for movement, stability, and overall bodily functions. The correct answer is 'All of the above' because muscle tissue plays a key role in each of these vital functions. The generation of body heat occurs through muscle activity, joint stabilization is achieved by muscles surrounding joints, and maintaining posture involves muscle contraction to support the body's position. Therefore, all the listed functions are interconnected and rely on the proper functioning of muscle tissue.

4. Which of the following is an example of a ball-and-socket joint?

Correct answer: B

Rationale: The correct answer is B, Hip. The hip joint is a ball-and-socket joint, characterized by the spherical head of one bone (femur) fitting into the cup-like socket of another bone (pelvis). This structure allows for a wide range of motion in multiple directions, such as flexion, extension, abduction, adduction, and rotation. Choices A, C, and D are incorrect as the knee, elbow, and wrist joints are not ball-and-socket joints. The knee is a hinge joint, allowing flexion and extension movements. The elbow is a hinge joint that allows flexion and extension, while the wrist is a condyloid joint permitting flexion, extension, abduction, adduction, and circumduction movements.

5. Which of the following is a functional group commonly found in alcohols?

Correct answer: B

Rationale: The hydroxyl functional group (OH) is commonly found in alcohols, giving them their characteristic properties. Alcohols are organic compounds that contain a hydroxyl group bonded to a carbon atom. The other choices, carbonyl, amine, and ester, are associated with different functional groups commonly found in other types of organic compounds. Carbonyl groups consist of a carbon atom double-bonded to an oxygen atom. Amines contain a nitrogen atom bonded to hydrogen atoms. Esters consist of a carbonyl group bonded to an alkoxyl group. Therefore, the correct answer is 'Hydroxyl (B),' as it specifically relates to the functional group present in alcohols, distinguishing it from the other options.

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