Study

SPH4C Kinematics

  •   0%
  •  0     0     0

      Back   Restart
  • Convert 15 kg to weight.
    147 N
  • What is the net force of something with constant velocity
    0 N - something at rest or something with constant velocity (no acceleration)
  • Calculate the force required to throw a 0.5 kg basketball upwards.
    F=mg = 0.5 x 9.8 N = 5 N [UP]
  • Determine the forces acting on a person in free fall
    gravity
  • Explain why a truck requires more time and more force to brake than a car?
    Can talk about Newton's first or second law
  • What is the difference between speed and velocity?
    Velocity is vector, speed scalar
  • Calculate the force of gravity acting on a basketball that is 0.5 kg.
    F=mg = 0.5 x 9.8 = 4.9 N = 5 N [down[
  • Determine the forces acting on a basketball falling down
    gravity, air resistance.
  • A hockey player pushes the wall with a force of 12 N [W], what is the reaction force?
    12 N [E] wall pushing him opposite direction
  • The slope of a displacement time graph gives what value?
    Velocity
  • What does a flat line on a speed-time graph represent in terms of acceleration.
    No acceleration, object experiencing constant speed.
  • What does a flat line on a distance-time graph represent
    Object at rest
  • What is Newton's First law
    Inertia- object in motion stays in motion, object at rest stays at rest. (Unless it experiences an external force)
  • What is the difference between distance, position, and displacement?
    Distance - total amount travelled, position - distance from a reference point (w/ direction), displacement - change in position
  • Liam ran 20 km east, 20 km west, and then 5 km south all in 1 hour. What is his speed?
    45 km/h
  • Convert 200 N to kg.
    20.4 kg
  • The slope of a distance time graph gives what value?
    Speed
  • Liam ran 20 km east, 20 km west, and then 5 km south all in 1 hour. What is his velocity?
    5 km/h [S]
  • A negative acceleration represents...
    Slowing down or deceleration
  • The ---------------------- (steeper/flatter) the slope of a distance time graph, the faster the object.
    Steeper (flatter means slower)
  • What changes depending on gravity: weight or mass
    weight
  • Determine the forces acting on the object: a textbook pushed across a desk
    Normal, gravity, applied force, kinetic friction
  • What is the net force is a box is being pushed with a force of 12 N [E] and force of friction is 10 N
    2 N [E]
    • Your experience on this site will be improved by allowing cookies.