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4.2: Contact Forces

Quiz by Macie Morris

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10 questions
Show answers
  • Q1
    What is the contact force that opposes motion between two surfaces?
    Frictional force
    Normal force
    Tension force
    Gravitational force
    30s
  • Q2
    What is the contact force exerted by a stretched or compressed object?
    Gravitational force
    Elastic force
    Frictional force
    Normal force
    30s
  • Q3
    Which contact force arises between two objects in contact and depends on the roughness of their surfaces?
    Normal force
    Electromagnetic force
    Frictional force
    Gravitational force
    30s
  • Q4
    What is the SI unit of force?
    Joule
    Newton
    Ampere
    Watt
    30s
  • Q5
    Which of the following factors does NOT affect frictional force?
    surface roughness
    temperature
    type of material
    weight of an object
    30s
  • Q6
    Which of the following statements about frictional force is true?
    Frictional force has no effect on motion
    Frictional force sometimes opposes motion
    Frictional force always opposes motion
    Frictional force always increases motion
    30s
  • Q7
    Which of the following surfaces would generally have a higher coefficient of friction?
    smooth surface
    rough surface
    oily surface
    wet surface
    30s
  • Q8
    Which of the following statements is true about elastic force?
    Elastic force only acts on solid objects.
    Elastic force is always in the opposite direction of the displacement.
    Elastic force restores an object to its original shape or position.
    Elastic force causes objects to permanently deform.
    30s
  • Q9
    Which of the following is an example of a contact force?
    Friction
    Magnetism
    Electricity
    Gravity
    30s
  • Q10
    What is the relationship between force and motion?
    Motion causes force
    Force and motion are interchangeable
    Force and motion are unrelated
    Force causes motion
    30s

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