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Test

Week 4 - Forces Capabilities

Usuario eliminado 10 preguntas

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Preguntas del test (10)

  1. 1Which of the following is the fundamental unit for a force?
    1. AMeter
    2. Bkg*m/s
    3. Cm/s^2
    4. Dkg*m/s^2
    5. Em*kg^2
    6. Fm*s/kg
  2. 2Which of the following is Newton's Second Law?
    1. AAn object at rest will remain at rest until acted upon by an outside, unbalanced force
    2. BEvery force has an equal and opposite reaction force
    3. CEnergy cannot be created or destroyed, only transferred from one object to another
    4. DThe acceleration of an object is equal to the net force acting on it divided by the mass of the object
  3. 3Which of the following is true for the force of gravity?
    1. AOn Earth, it is always directed straight down, toward the Earth's center
    2. BIt is always 9.8 m/s^2
    3. CIt is also referred to as an objects 'weight'
    4. DIt acts on all objects equally
    5. EKeeping everything else the same, if you double an object's mass, you double the force of gravity acting upon it.
  4. 4What is the force of gravity acting on an object with a mass of 2.5 kg?

    Hint: You can use 10 m/s^2 for the acceleration due to gravity.

    The first blank is for the value. The second blank is for the units.

    F = [blank_start]25[blank_end] [blank_start]N[blank_end]
    1. A25
    2. BN
  5. 5The force of [blank_start]friction[blank_end] is the force that resists all motion.
    1. Afriction
    2. Bgravity
    3. Cnormal
    4. Dtension
    5. Ecompression
  6. 6Put the appropriate forces in the correct spot for this object, a box acceleration to the right due to an applied force.Imagen de la pregunta 6
    1. ANormal
    2. BGravity
    3. CFriction
    4. DApplied
  7. 7What is the net force acting on this object?

    First blank is for the value. Second blank is for the units. Third blank is for the direction.

    Net Force = [blank_start]17[blank_end] [blank_start]N[blank_end] [blank_start]Right[blank_end]    Imagen de la pregunta 7
    1. A17
    2. BN
    3. CRight
  8. 8What is the net force on a object with the following forces acting upon it:

    First blank is the resultant value. Second blank is the units. Third blank is the angle from the + x axis.

    +x = 10 N
    - x = 13 N
    +y = 0 N
    - y = 4 N

    R = [blank_start]5[blank_end] [blank_start]N[blank_end] @ [blank_start]240[blank_end] degrees
    1. A5
    2. BN
    3. C240
  9. 9[blank_start]Gravity[blank_end] is the force between all masses.
    [blank_start]Friction[blank_end] is the force that resists all motion.
    [blank_start]Normal[blank_end] is the force that resists an object being pulled into another object. It is always 90 degrees to its surface.
    1. AGravity
    2. BFriction
    3. CNormal
  10. 10A 10 kg box is moving on a rough surface with a speed of 1 m/s. It comes to rest in 2 seconds. What is the force of friction acting on the box?
    1. A0.5 N
    2. B5 N
    3. C50 N
    4. D500 N

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El usuario ha eliminado su información de asignaturas Test sobre Week 4 - Forces Capabilities, creado por Usuario eliminado el 06/12/2019.
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