Ch 11.2 Force And Mass Determine Acceleration.

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Force Quizzes & Trivia

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Questions and Answers
  • 1. 

    (page 353)  Gather 15 paper clips and a string and complete the assignment "How are force and acceleration related?"  Answer both the "What do you think?"

  • 2. 

    Write down Newton's second law.

  • 3. 

    What three concepts are involved in Newton's second law?

  • 4. 

    (354)  What do the arrows represent in the drawings?

  • 5. 

    Write down the formula for calculating newton's second law

  • 6. 

    The unit representing force is the __________?

    Explanation
    The unit representing force is the newton. The newton is the SI unit of force, named after Sir Isaac Newton. It is defined as the force required to accelerate a one-kilogram mass by one meter per second squared. The newton is commonly used to measure forces in various fields such as physics and engineering.

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  • 7. 

    Solve this problem.  An object having a 5 kg mass and 4m/s2 acceleration will have ______ N force.

    Explanation
    The force exerted on an object can be calculated using the formula F = m * a, where F is the force, m is the mass, and a is the acceleration. Given that the mass is 5 kg and the acceleration is 4 m/s^2, we can substitute these values into the formula to find the force. Therefore, the force exerted on the object is 5 kg * 4 m/s^2 = 20 N.

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  • 8. 

    Solve this problem An object with 30kg mass and 7 m/s2 acceleration will have _____ N force.

    Explanation
    The force exerted on an object can be calculated using Newton's second law of motion, which states that force (F) is equal to mass (m) multiplied by acceleration (a). In this case, the mass of the object is given as 30kg and the acceleration is given as 7 m/s^2. Therefore, the force can be calculated as 30kg * 7 m/s^2, resulting in a force of 210 N.

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  • 9. 

    Solve this problem.  An object with 30000g mass and 5m/s2 will have ____N force.

    Explanation
    30000g = 30 kg

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  • 10. 

    Solve this problem.  An object with a force of 20 N and having an acceleration of 10 m/s2 will have _____kg mass.

    Explanation
    M = F/A

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  • 11. 

    Solve this problem. An object with a force of 30 N and having an accerleration of 3 m/s2 will have a _______kg mass.

    Explanation
    The mass of an object can be calculated using the formula F = ma, where F is the force applied on the object, m is the mass of the object, and a is the acceleration of the object. Rearranging the formula, we can solve for mass: m = F/a. Given that the force is 30 N and the acceleration is 3 m/s2, we can substitute these values into the formula to find the mass: m = 30 N / 3 m/s2 = 10 kg. Therefore, the object will have a mass of 10 kg.

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  • 12. 

    Solve this problem.  An object with a Force of 20N and a mass of 2kg will have _____ m/s2 of acceleration.

    Explanation
    A=F/M

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  • 13. 

    If the same force is applied to objects of different mass, which object will have the greater acceleration?

  • 14. 

    (357)  Forces can change the ______ of motion.

    Explanation
    Forces can change the direction of motion. This means that when a force is applied to an object, it can cause the object to change its path or move in a different direction than before. This is because forces can cause objects to accelerate or decelerate, leading to a change in their velocity and ultimately their direction of motion.

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  • 15. 

    Any ______ that keeps an object moving in a circle is known as a centripetal force.

    Explanation
    A centripetal force is any force that keeps an object moving in a circle. In this context, the word "centripetal" refers to the direction of the force, which is towards the center of the circle. Without this force, the object would move in a straight line tangent to the circle. Therefore, the correct answer is "force".

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  • 16. 

    Write down the definition of centripetal force.

  • 17. 

    If the forces acting upon an object is increased, what happens to the objects acceleration?

  • 18. 

    How does the mass of an object affect its acceleration?

  • 19. 

    What force keeps and object moving in a circle?

  • 20. 

    Carlos pushes a 3kg box with a force of 9N.  THe force of friction o nthe box is 3N in the opposite direction.  What is the acceleration on the box?

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