Ks3 Physics Formulas Quiz Questions

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  • 1/8 Questions

    What is the equation to find the Force?

    • F=M/A
    • F=MA
    • M=FA
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About This Quiz

Explore key physics formulas with this KS3 quiz. Questions cover acceleration, force, velocity, weight, and fluid dynamics. Ideal for reinforcing understanding of physics principles and preparing for school exams.

Ks3 Physics Formulas Quiz Questions - Quiz

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  • 2. 

    The unit of pressure Pascal means:

    • Newton per metre squared.

    • Gram per centimetre squared.

    • Gram per metre squared.

    Correct Answer
    A. Newton per metre squared.
    Explanation
    The unit of pressure, Pascal, is defined as Newton per metre squared. This means that it is a measure of force per unit area. The Newton is the unit of force and the metre squared represents the area over which the force is applied. Therefore, the correct answer is Newton per metre squared.

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  • 3. 

    What is the Equation to find Weight?

    • Weight=Mass x Speed due to Gravity

    • Weight= Mass x 4n

    • Weight=Mass x Acceleration due to Gravity

    Correct Answer
    A. Weight=Mass x Acceleration due to Gravity
    Explanation
    The equation to find weight is given by multiplying the mass of an object by the acceleration due to gravity. This equation is derived from Newton's second law of motion, which states that the force acting on an object is equal to its mass multiplied by its acceleration. In the case of weight, the force is the gravitational force acting on the object, and the acceleration is the acceleration due to gravity. Therefore, the correct equation to find weight is Weight = Mass x Acceleration due to Gravity.

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  • 4. 

    What is the Equation to find Velocity?

    • Velocity=Speed/Time

    • Velocity=Displacement/Time

    • Displacement=Velocity/Time

    Correct Answer
    A. Velocity=Displacement/Time
    Explanation
    The equation to find velocity is given by dividing the displacement by time. This is because velocity is defined as the rate of change of displacement with respect to time. Therefore, to calculate velocity, we need to know the displacement (change in position) and the time taken for that displacement to occur. By dividing the displacement by the time, we can determine how fast an object is moving in a specific direction.

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  • 5. 

    The formula for Hookes Law is:

    • F= n x e

    • F= k x e

    • K= f x e

    Correct Answer
    A. F= k x e
    Explanation
    The given formula for Hooke's Law states that the force (f) is equal to the product of the spring constant (k) and the displacement (e). This formula is derived from experimental observations that show the relationship between the force applied to a spring and the resulting displacement. The spring constant represents the stiffness of the spring, and the displacement refers to the amount the spring is stretched or compressed from its equilibrium position. Therefore, the correct answer is f = k x e.

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  • 6. 

    What is the Formula for Acceleration?

    • A=(V-U)/T

    • A=(U-V)/T

    • A=(VxU)/T

    Correct Answer
    A. A=(V-U)/T
    Explanation
    The formula for acceleration is A=(V-U)/T. This formula represents the change in velocity (V-U) divided by the time taken (T). It is derived from the basic definition of acceleration as the rate of change of velocity over time. By subtracting the initial velocity (U) from the final velocity (V) and dividing it by the time interval (T), we can determine the acceleration of an object.

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  • 7. 

    The formula for wavespeed is:

    • Frequency x Wavelength

    • Wavelength / Frequency

    • Frequency x Amplitude

    Correct Answer
    A. Frequency x Wavelength
    Explanation
    The formula for wavespeed is given by multiplying the frequency and the wavelength of the wave. This is because wavespeed is defined as the distance traveled by a wave per unit time, and the wavelength represents the distance between two consecutive points on the wave that are in phase. The frequency, on the other hand, represents the number of complete cycles of the wave that occur in one second. Therefore, multiplying the frequency and the wavelength will give us the distance traveled by the wave in one second, which is the wavespeed.

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  • 8. 

    If a fluid is moving faster the pressure:

    • Increases

    • Stays the same

    • Decreases

    Correct Answer
    A. Decreases
    Explanation
    When a fluid is moving faster, it creates a decrease in pressure. This can be explained by Bernoulli's principle, which states that as the speed of a fluid increases, its pressure decreases. This is because the faster-moving fluid particles exert less force on the surrounding surfaces, resulting in a decrease in pressure. Therefore, when a fluid is moving faster, the pressure decreases.

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  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jun 09, 2012
    Quiz Created by
    Alfie
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