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5A Forces II

Quiz by Gideon Williams

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11 questions
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  • Q1
    For work to be done..
    Energy must be transferred from one form to another
    A force must be involved
    An object must move a distance with a force acting on it
    There is a change in direction of the force
    30s
  • Q2
    The formula for Word done is
    N x m
    F x s
    W x s
    F x d
    30s
  • Q3
    Tony lifts a can of beams weighing 2kg to a shelf 50cm high. What work does he do?
    10J
    1J
    100J
    1000J
    30s
  • Q4
    Who is doing work?
    Martin holds up his Albert Hein shopping in 2 bags
    Jill stops a car rolling down a slope
    Sally stands at the top of the stairs
    Bob pushes a wheelbarrow into his garden
    30s
  • Q5
    A spring returns to its original length when stretched
    Plastic deformation
    Elastic deformation
    Inelastic deformation
    Spring constant
    30s
  • Q6
    Units of the spring constant?
    N/m
    Nm
    N/cm
    N
    30s
  • Q7
    A spring is 25cm long. A 10N weight is added to it and it stretches to 35cm. If the elastic limit is not met, what is the spring constant?
    100N/cm
    1N/cm
    10N/cm
    100N/m
    30s
  • Q8
    A spring is 25cm long. It stretches to 45cm. If the spring constant is 20N/m, how much elastic potential energy has it stored?
    4J
    400J
    0.4J
    40J
    60s
  • Q9
    An experiment is set up to measure how much a spring stretches. Weights are added to the spring and the extension measured. What is the independent variable?
    Distance stretched to
    Force
    Extension
    Length of spring
    30s
  • Q10
    An experiment is set up to measure how much a spring stretches. Weights are added to the spring and the extension measured. What is the dependent variable?
    Force added
    Extension
    Original length
    Material spring is made of
    30s
  • Q11
    An experiment is set up to measure how much a spring stretches. Weights are added to the spring and the extension measured. Name one control variable
    Height of spring
    Force added
    Length of spring
    The type of spring
    30s

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