Types Of Forces MCQ Quiz: Exam!

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Sarah Avery
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Questions: 9 | Attempts: 1,162

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Types Of Forces MCQ Quiz: Exam! - Quiz

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Questions and Answers
  • 1. 

    When a force pushes on an object to the right with a magnitude of 20N and another force pushes on the object to the left with a magnitude of 15N what would the resulting motion of the object be?

    • A.

      No motion

    • B.

      Toward the left

    • C.

      Toward the right

    • D.

      Upward

    Correct Answer
    C. Toward the right
    Explanation
    When a force pushes an object to the right with a magnitude of 20N and another force pushes the object to the left with a magnitude of 15N, the resulting motion of the object would be toward the right. This is because the force pushing to the right is greater in magnitude than the force pushing to the left, creating a net force in the rightward direction. As a result, the object will move in the direction of the greater force, which is toward the right.

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  • 2. 

    In physical science, a push or a pull in a given direction is called a(n)...

    • A.

      Inertia

    • B.

      Accelerator

    • C.

      Force

    • D.

      Motion

    Correct Answer
    C. Force
    Explanation
    Force is the correct answer because in physical science, a push or a pull in a given direction is referred to as a force. A force can cause an object to move, change direction, or stop. It is a fundamental concept in physics and is measured in units called Newtons. Without the presence of a force, an object would remain at rest or continue moving in a straight line at a constant speed due to its inertia.

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  • 3. 

    In a vector diagram, what does the length of the arrow represent?

    • A.

      The direction of the force

    • B.

      The magnitude or strength of the force

    • C.

      How long the force is

    • D.

      The area of the force

    Correct Answer
    B. The magnitude or strength of the force
    Explanation
    The length of the arrow in a vector diagram represents the magnitude or strength of the force. In a vector diagram, the arrow is used to represent a force, and the length of the arrow indicates the size or intensity of that force. A longer arrow signifies a greater magnitude or strength of the force, while a shorter arrow represents a smaller magnitude or strength. Therefore, the length of the arrow is used to visually depict the relative strength of the force being represented in the vector diagram.

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  • 4. 

    Which of the following is an example of a non-contact force?

    • A.

      A child running through a field

    • B.

      A fan blowing a student's hair

    • C.

      A carpenter hammering a nail

    • D.

      A book falling off a desk

    Correct Answer
    D. A book falling off a desk
    Explanation
    A non-contact force refers to a force that acts on an object without physically touching it. In the given options, the only example of a non-contact force is "a book falling off a desk." This is because the force of gravity is causing the book to fall without any direct physical contact with another object. The other options involve physical contact between objects, such as a child running through a field, a fan blowing a student's hair, and a carpenter hammering a nail.

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  • 5. 

    The force that one surface exerts on another when the two rubs against each other are called...

    • A.

      Gravity

    • B.

      Acceleration

    • C.

      Inertia

    • D.

      Friction

    Correct Answer
    D. Friction
    Explanation
    Friction is the force that occurs when two surfaces rub against each other. It opposes the motion of an object and is responsible for the resistance experienced when trying to slide or move objects on a surface. Gravity is the force that attracts objects towards each other, acceleration is the rate of change of velocity, and inertia is the tendency of an object to resist changes in its motion. Therefore, friction is the correct answer as it specifically refers to the force between two surfaces when they rub against each other.

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  • 6. 

    What does the head of each arrow indicate?

    • A.

      The magnitude of the force

    • B.

      The area of the force

    • C.

      The strength of the force

    • D.

      The direction of the force

    Correct Answer
    D. The direction of the force
    Explanation
    The head of each arrow indicates the direction of the force. This means that the arrow points towards the direction in which the force is acting. The magnitude, area, and strength of the force are not indicated by the head of the arrow.

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  • 7. 

    Which of the following is true of the buoyant force?

    • A.

      It makes an object feel heavier

    • B.

      It acts in the downward direction

    • C.

      It acts in the upward direction

    • D.

      It acts with the force of gravity

    Correct Answer
    C. It acts in the upward direction
    Explanation
    The buoyant force is a force exerted by a fluid on an object submerged in it, and it acts in the upward direction. This force is a result of the pressure difference between the top and bottom surfaces of the object. The buoyant force is responsible for making objects float in a fluid, as it counteracts the force of gravity pulling the object downward. Therefore, the statement "it acts in the upward direction" is true.

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  • 8. 

    The force that pulls a falling object toward the Earth is called...

    • A.

      Acceleration

    • B.

      Inertia

    • C.

      Momentum

    • D.

      Gravity

    Correct Answer
    D. Gravity
    Explanation
    Gravity is the force that pulls a falling object toward the Earth. It is the natural phenomenon by which all objects with mass or energy are brought toward one another. This force is responsible for the motion of planets, moons, and other celestial bodies in the universe.

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  • 9. 

    Identify this piece of lab equipment.

    • A.

      Manual Balance

    • B.

      Spring Scale

    • C.

      Mechanical Scale

    • D.

      Triple Beam Scale

    Correct Answer
    B. Spring Scale
    Explanation
    A spring scale is a piece of lab equipment used to measure the force exerted on an object. It consists of a spring connected to a hook at one end and a pointer or scale at the other end. When an object is hung on the hook, the spring stretches or compresses, and the scale indicates the force exerted by the object. This type of scale is commonly used in physics and chemistry experiments to measure weight or force.

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