MCAS Physics Exam Practice

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| By Gregorynaomi

Gregorynaomi

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Quizzes Created: 1463 | Total Attempts: 749,371

Questions: 10 | Attempts: 156 | Updated: Mar 18, 2023

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Physics is a natural science that deals with the study of matter and its motion through space and time. Also it is the study of force of natural world. This study is required as study in which its application is broadly used in all industry and give pace to the high rate of technology in this age.

Questions and Answers

1.

Which of these is not a type of motion?
- A.
  
  Reverse motion
- B.
  
  Rotational motion
- C.
  
  Random motion
- D.
  
  Transnational motion
Correct Answer
A. Reverse motion

Explanation
Reverse motion is not a type of motion because it refers to the act of moving backward or in the opposite direction of the usual motion. It is not a distinct category of motion, but rather a descriptor of the direction in which an object is moving. The other options, such as rotational motion, random motion, and transnational motion, all represent different types of motion with specific characteristics and behaviors.

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2.

What is the product of mass and velocity?
- A.
  
  Impulse
- B.
  
  Momentum
- C.
  
  Velocity
- D.
  
  Inertia
Correct Answer
B. Momentum

Explanation
The product of mass and velocity is known as momentum. Momentum is a vector quantity that represents the motion of an object and is calculated by multiplying the mass of the object by its velocity. It is a measure of how difficult it is to stop or change the motion of an object. The greater the mass or velocity of an object, the greater its momentum will be. Therefore, momentum is the correct answer to the question.

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3.

What is the unit of mass?
- A.
  
  Second
- B.
  
  Meter
- C.
  
  Kilogram
- D.
  
  Newton
Correct Answer
C. Kilogram

Explanation
The unit of mass is kilogram. Mass is a fundamental property of matter and is commonly measured in kilograms. The kilogram is defined as the mass of the International Prototype of the Kilogram, a platinum-iridium cylinder stored at the International Bureau of Weights and Measures in France. It is used as the base unit for mass in the International System of Units (SI).

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4.

How many seconds make a minute?
- A.
  
  30 seconds
- B.
  
  120 seconds
- C.
  
  45 seconds
- D.
  
  60 seconds
Correct Answer
D. 60 seconds

Explanation
There are 60 seconds in a minute. This is a standard unit of time measurement where 1 minute is divided into 60 equal parts, each part being a second. Therefore, the correct answer is 60 seconds.

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5.

Which of these is not a vector quantity?
- A.
  
  Mass
- B.
  
  Force
- C.
  
  Velocity
- D.
  
  Momentum
Correct Answer
A. Mass

Explanation
Mass is not a vector quantity because it does not have a direction associated with it. Vector quantities have both magnitude and direction, while mass only has magnitude. Force, velocity, and momentum are all vector quantities because they have both magnitude and direction.

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6.

How many grams is in a kilogram?
- A.
  
  0.1
- B.
  
  10
- C.
  
  1000
- D.
  
  100
Correct Answer
C. 1000

Explanation
There are 1000 grams in a kilogram. This is a standard conversion in the metric system, where the prefix "kilo-" represents a factor of 1000. Therefore, when converting from kilograms to grams, you multiply the value by 1000.

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7.

Which of these is not a fundamental quantity?
- A.
  
  Velocity
- B.
  
  Mass
- C.
  
  Time
- D.
  
  Luminous Intensity
Correct Answer
A. Velocity

Explanation
Velocity is not a fundamental quantity because it can be derived from fundamental quantities such as length and time. Velocity is defined as the rate at which an object changes its position with respect to time, which can be calculated by dividing the change in position (length) by the change in time. Therefore, velocity is not considered a fundamental quantity on its own.

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8.

What is the product of mass and acceleration?
- A.
  
  Displacement
- B.
  
  Impulse
- C.
  
  Velocity
- D.
  
  Force
Correct Answer
D. Force

Explanation
The product of mass and acceleration is known as force. Force is a physical quantity that describes the interaction between objects and causes them to accelerate. According to Newton's second law of motion, force is equal to mass multiplied by acceleration. Therefore, force is the correct answer in this case.

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9.

What is motion exhibited by the movement of simple pendulum?
- A.
  
  Translational motion
- B.
  
  Oscillatory motion
- C.
  
  Random motion
- D.
  
  Rotational motion
Correct Answer
B. Oscillatory motion

Explanation
The motion exhibited by the movement of a simple pendulum is oscillatory motion. This is because a simple pendulum swings back and forth in a regular and repeating pattern. It moves from one extreme position to the other and then back again, continuously oscillating around a fixed point. This type of motion is characterized by a periodicity and can be described by parameters such as amplitude, frequency, and period.

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10.

What is the ratio of distance with time?
- A.
  
  Momentum
- B.
  
  Impulse
- C.
  
  Velocity
- D.
  
  Speed
Correct Answer
D. Speed

Explanation
The ratio of distance with time is known as speed. Speed is a scalar quantity that measures how fast an object is moving. It is calculated by dividing the distance traveled by the time taken. Therefore, speed is the correct answer to the question.

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