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Test

Week 5-6: Complex Forces Capabilities

Usuario eliminado 10 preguntas Actualizado el 3 feb 2020

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Preguntas del test (10)

  1. 1Centripetal Force is a byproduct of which of Newton's Laws of Motion?
    1. ANewton's First Law
    2. BNewton's Second Law
    3. CNewton's Third Law
    4. DUniversal Gravitation
  2. 2Which of the following statements about the coefficient of friction is correct?
    1. AIt has no units
    2. BIt depends on mass
    3. CIt depends on the surfaces in contact only
    4. DIt is a higher value when objects are not in motion
  3. 3What is the centripetal force acting on a 1.0 kg ball being spun in a circle with radius of 0.25 meters at a speed of 3.0 m/s?

    F = [blank_start]32[blank_end] N
    1. A32
  4. 4Which direction will the ball travel if the string breaks at this point?Imagen de la pregunta 4
    1. A1
    2. B2
    3. C3
    4. D4
  5. 5Which of the following are true of the spring force?
    1. AIt is restorative
    2. BIt is always opposite the direction of stretch
    3. CIt is always pulling toward equilibrium
    4. DIt can push or pull
    5. EIt is measured in Newtons
  6. 6Which of the following statements is true?Imagen de la pregunta 6
    1. AThe value is zero for the y component of the T1 Force
    2. BThe force of gravity is equal to the sum of the y components of T1 and T2
    3. CThe force of gravity is equal to the y component of T2
    4. DT2 > T1
  7. 7A wooden pallet carrying a load of 600.0 kg rests on a wooden floor and the mu value is 0.280 between the two items. A forklift driver decides to push it without lifting it. What force must be applied to just get the pallet moving?

    F = [blank_start]1650[blank_end] N
    1. A1650
  8. 8A spring with a natural height of 57 mm is compressed by a 300 g mass to a new height of 51 mm. What is the spring constant for this spring?

    The first blank is for the numerical value. The second blank is the units. Put a space between EACH character for the units!
    k = [blank_start]750[blank_end] [blank_start]N / m[blank_end]
    1. A750
    2. BN / m
  9. 9What values should be plotted on the x and y axes of a Cartesian graph in order to provide a line whose slope will give you the spring constant?
    1. Ax = displacement
      y = force
    2. Bx = force
      y = gravity
    3. Cx = distance
      y = displacement
    4. Dx = distance
      y = time
  10. 10A block is at rest on a slope. What direction does friction act?
    1. AThere is no friction is the block is not moving
    2. BFriction is acting downwards into the slope
    3. CFriction is acting upwards, parallel to the slope
    4. DFriction is acting downwards, parallel to the slope

Información

Descripción
Centripetal Forces, Springs, Friction, Tension and Angles
Autor
Usuario eliminado
Idioma
English
Visitas
16
Historial
Creado el 6 dic 2019 · actualizado el 3 feb 2020

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