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    Study Guide

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    Study Guide

    Uploaded by

    s26011

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    Physics Practice Problems

    Mixed Questions, Lessons 1-7

    Show work using PIES method for each question. Round answers to two decimal places. Use units!

    1) Use the graph of a car’s motion to the right to answer the


    following questions:
    a) Determine the acceleration of the car in
    sections A, B and C.
    b) Determine the displacement of the car in section B.
    c) Determine the average speed of the car over the
    total trip.
    d) Determine the average acceleration of the car
    over the full trip.
    e) Create a story that describe the motion of the car.

    2) Use the graph of a ball’s motion to the right to


    answer the following questions:
    a) Determine the velocity of the ball in
    sections A, B and C.
    b) Determine the displacement of the ball in section
    B.
    c) Determine the average speed of the ball over
    the total trip.
    d) Determine the average velocity of the ball
    over the full trip.
    e) Create a story that describe the motion of the
    ball.

    3) A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope, its
    speed is 4 m/s. But 3 seconds later, at the bottom of the slope, its speed is 22 m/s. What is its average
    acceleration?

    4) Pete is driving down 7th street. He drives 150 meters in 18 seconds. Assuming he does not speed up
    or slow down, what is his speed?

    5) A cyclist accelerates from 0 m/s to 8 m/s in 3 seconds.


    a) What is his acceleration?
    b) Is this acceleration higher than that of a car which accelerates from 0 to 30 m/s in 8 seconds?

    6) A car advertisement states that a certain car can accelerate from rest to 70 km/h in 7 seconds. Find
    the car’s average acceleration.

    7) A plane’s average speed between two cities is 600 km/hr. If the trip takes 2.5 hrs. how far does the
    plane fly?
    8) George walks to a friend’s house. He walks 750 meters North, then realizes he walked too far. He
    turns around and walks 250 meters South. The entire walk takes him 13 seconds.
    a) Draw a vector diagram for George’s trip.
    b) What is his total displacement?
    c) What is his average velocity for the trip?

    9) Explain how two objects could have the same acceleration but different velocities.

    10) Josie and Fred compete in a race around a 400m track. Josie completes the 400m race in 57s, Fred
    finishes in 68s.
    a) Who had a greater speed during the race?
    b) Who had a greater velocity during the race?
    c) Who had a greater acceleration during the race?

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