Physics Quiz: Motion, Simple Machines, And Waves

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  • 1/20 Questions

    A ___________________ is a push or pull in any direction.

    • Newton
    • Force
    • Fluid
    • None of these
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About This Quiz


Are you ready for this motion, simple machines, and waves physics quiz? One of the basic rules of physics is that for every action, there is a reaction. Simple machines have been in use for the longest time ever in the building of the pyramids. Power is the rate at which work is done, and machines increase this rate by a significant amount. Take up this quiz and get to see how much you know about power and motion.

Physics Quiz: Motion, Simple Machines, And Waves - Quiz

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  • 2. 

    The wave property that is related to the height of a wave is the

    • Frequency

    • Amplitude

    • Wavelength

    • Voltage

    Correct Answer
    A. Amplitude
    Explanation
    The amplitude of a wave is the maximum displacement of a particle from its equilibrium position. It represents the height or intensity of the wave. As the amplitude increases, the wave becomes more intense and carries more energy. Therefore, the amplitude is directly related to the height of a wave.

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  • 3. 

    Referring to one of Newton’s Laws, for every action, the reaction is ______________________

    • Equal and opposite

    • Increased significantly

    • Equal and in the same direction

    • None of these

    Correct Answer
    A. Equal and opposite
    Explanation
    This answer is correct because it accurately states Newton's third law of motion, which states that for every action, there is an equal and opposite reaction. This means that whenever an object exerts a force on another object, the second object will exert an equal force in the opposite direction on the first object.

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  • 4. 

    ___________ is a unit that measures force.

    • Meter

    • Work

    • Watt

    • Newton

    Correct Answer
    A. Newton
    Explanation
    A newton is a unit of measurement used to quantify force. It is defined as the amount of force required to accelerate a one kilogram mass by one meter per second squared. Therefore, the correct answer is Newton.

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  • 5. 

    _____________ is the lowest point between each crest of a wave.

    • Trough

    • Wavelength

    • Compression

    • None of these

    Correct Answer
    A. Trough
    Explanation
    The trough is the lowest point between each crest of a wave. It is the point where the displacement of the wave is at its minimum or negative maximum. In a transverse wave, such as a water wave or a wave on a string, the trough represents the lowest point of the wave's oscillation. In contrast, a crest is the highest point or positive maximum of the wave. Therefore, the trough is the correct answer as it accurately describes the lowest point between each crest of a wave.

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  • 6. 

    A chair sitting in the middle of a room at rest is an example of Newton’s __ Law of Motion.

    • 1st

    • 2nd

    • 3rd

    • 4th

    Correct Answer
    A. 1st
    Explanation
    The statement "A chair sitting in the middle of a room at rest" refers to an object being in a state of rest or equilibrium. According to Newton's 1st Law of Motion, an object at rest will remain at rest unless acted upon by an external force. Therefore, the chair sitting in the middle of a room at rest is an example of Newton's 1st Law of Motion.

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  • 7. 

    The acceleration of gravity is 9.8 m/s/s

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The acceleration of gravity refers to the rate at which an object falls towards the Earth. It is a constant value of 9.8 m/s/s, meaning that for every second an object falls, its velocity increases by 9.8 meters per second. Therefore, the given statement is true.

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  • 8. 

    How is work calculated?

    • Power times force

    • Power divided by distance

    • Force times distance

    • Power multiplied by the distance

    Correct Answer
    A. Force times distance
    Explanation
    Work is calculated by multiplying the force applied to an object by the distance over which the force is applied. This is because work is defined as the product of force and displacement in the direction of the force. Therefore, the correct answer is "force times distance".

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  • 9. 
    Using the equation , solve for the following...  = 340 m/s  =   100 Hz  =  ? - ProProfs

    Using the equation , solve for the following...  = 340 m/s  =   100 Hz  =  ?

    • 240 m

    • 34,000 m

    • 3.4 m

    • 2.1 m

    Correct Answer
    A. 3.4 m
  • 10. 

    Which of the following would be an example of a noise that would be ultrasonic?

    • Elephant's moan

    • Mach 2 fighter jet

    • Dog's whistle

    • Tiger's roar

    Correct Answer
    A. Dog's whistle
    Explanation
    A dog's whistle would be an example of a noise that would be ultrasonic because it produces sound waves at a frequency higher than the upper limit of human hearing, which is typically around 20,000 Hz. Ultrasonic sounds are often used in dog training as they are inaudible to humans but can be heard by dogs.

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  • 11. 

    What is the unit for power?

    • Joule

    • Newton

    • Kelvin

    • Watt

    Correct Answer
    A. Watt
    Explanation
    The unit for power is watt. Power is the rate at which work is done or energy is transferred or converted. It is measured in watts, which is equivalent to one joule per second. The watt is commonly used to quantify the amount of electrical power consumed by devices or the rate at which electrical energy is transferred.

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  • 12. 

    What is power?

    • The force that is used

    • The work that is done

    • The time saved from work

    • The rate at which work is done

    Correct Answer
    A. The rate at which work is done
    Explanation
    Power is defined as the rate at which work is done. It measures how quickly work is being done or the amount of work done per unit of time. It is not the force that is used or the work that is done itself, but rather the rate at which work is being performed. The concept of time saved from work is not relevant to the definition of power.

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  • 13. 

    As the wavelength increases, the frequency

    • Decreases

    • Increases

    • Stays the same

    • Increases and then decreases

    Correct Answer
    A. Decreases
    Explanation
    As the wavelength increases, the frequency decreases. This is because wavelength and frequency are inversely proportional to each other. Wavelength is the distance between two consecutive points in a wave, while frequency is the number of complete waves that pass a point in a given time. When the wavelength increases, it means that the distance between consecutive points in the wave becomes larger, which results in a decrease in the number of complete waves passing a point in a given time, leading to a decrease in frequency.

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  • 14. 

    Objects such as a feather and an apple will fall at different rates due to

    • Terminal velocity

    • Their masses

    • Their shapes

    • Air resistance

    Correct Answer
    A. Air resistance
    Explanation
    Feathers and apples will fall at different rates due to air resistance. Air resistance is a force that opposes the motion of objects through the air. Feathers have a larger surface area compared to their mass, which results in more air resistance. This causes feathers to fall more slowly compared to apples, which have a smaller surface area relative to their mass. Therefore, air resistance plays a significant role in determining the rate at which objects fall.

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  • 15. 

    What is power?

    • The rate at which work is done

    • The work that is done

    • The strength of someone or something

    • The mass of an object

    Correct Answer
    A. The rate at which work is done
    Explanation
    Power is defined as the rate at which work is done. It measures how quickly work is being performed or how fast energy is being transferred. It is a measure of the amount of work done per unit of time. In other words, power indicates how much energy is being used or transformed in a given period. Therefore, the correct answer is "The rate at which work is done."

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  • 16. 
    In the image below, what sort of wave interaction is happening? - ProProfs

    In the image below, what sort of wave interaction is happening?

    • Destructive interference

    • Diffusion

    • Constructive interference

    • None of these

    Correct Answer
    A. Constructive interference
    Explanation
    The image shows two waves overlapping and reinforcing each other, resulting in a wave with greater amplitude. This is known as constructive interference, where the waves are in phase and their amplitudes add up.

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  • 17. 

    An example of fluid friction would be _______________________.

    • A leaf falling slowly to the ground

    • A motorcyclist waiting at a stop light

    • An astronaut floating through space

    • A swimmer floating through the water

    Correct Answer
    A. A leaf falling slowly to the ground
    Explanation
    Fluid friction is a type of friction that occurs between a solid object and a fluid (such as air or water) when the object moves through the fluid. In this case, a leaf falling slowly to the ground experiences fluid friction as it moves through the air. The air exerts a resistance force on the leaf, slowing down its descent. This is an example of fluid friction because it involves the interaction between a solid object (the leaf) and a fluid (the air).

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  • 18. 

    Which of these waves does NOT require a medium?

    • Seismic waves

    • Radio waves

    • Ocean waves

    • None of these

    Correct Answer
    A. Radio waves
    Explanation
    Radio waves do not require a medium to travel through. Unlike seismic waves and ocean waves, which require a medium such as solid ground or water, radio waves can travel through empty space. This is because radio waves are a type of electromagnetic radiation, which can propagate through a vacuum.

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  • 19. 

    If you travel from the Earth to the moon (gravitational force changes), the _____________.

    • Mass remains constant

    • Weight remains constant

    • Mass increases

    • Mass decreases

    Correct Answer
    A. Mass remains constant
    Explanation
    When you travel from the Earth to the moon, the force of gravity acting on you changes, but your mass remains constant. Mass is a measure of the amount of matter in an object and is independent of the gravitational force acting on it. Weight, on the other hand, is the force of gravity acting on an object and is dependent on the gravitational field strength. Since mass is a fundamental property of an object, it does not change regardless of the gravitational force acting on it.

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  • 20. 

    Which of the following would be an example of a noise that would be infrasonic?

    • Elephant's moan

    • Bullwhip snap

    • Dog's whistle

    • None of these

    Correct Answer
    A. Elephant's moan
    Explanation
    An example of a noise that would be infrasonic is an elephant's moan. Infrasonic sounds are those that have a frequency below the range of human hearing, typically below 20 Hz. Elephants are known to produce low-frequency vocalizations, including moans, rumbles, and roars, which can be detected by other elephants over long distances. These vocalizations are considered infrasonic because they have a frequency below what humans can perceive.

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  • Current Version
  • Aug 31, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • May 08, 2014
    Quiz Created by
    Asdfasdf
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