Springs in motion: period, frequency and graphs

Answer Key - Grade 11 Science Worksheet - Building Confidence

Circle the best answer, or write your answer on the line.

1. 1.

   A mass on a spring makes 8 full cycles in 12 s. What is the period, to 0.01 s, Ari?

   1.5 s
2. 2.

   A mass on a spring makes 20 full cycles in 9 s. What is the period, to 0.01 s, Bo?

   0.45 s
3. 3.

   A mass on a spring makes 12 full cycles in 30 s. What is the period, to 0.01 s, Kira?

   2.5 s
5. 4.

   In the graph, what is the amplitude of the mass's motion, Jun?

   • 2 cm
   • 16 cm
   • 8 cm
6. 5.

   In the graph, what is the period of the motion, Luz?

   Use the picture in question 4.

   • 1 s
   • 2 s
   • 4 s
7. 6.

   A mass on a spring has a period of 0.25 s. What is its frequency, Noah?

   • 2.5 Hz
   • 4 Hz
   • 0.25 Hz
8. 7.

   A mass on a spring makes 5 full cycles each second. What is its period, Pia?

   • 2 s
   • 5 s
   • 0.2 s
9. 8.

   Which two things set the period of a mass on a spring, by Tala's reading (OpenStax)?

   • The amplitude and the mass
   • The mass and the spring constant
   • The amplitude by itself
10. 9.

    A mass on a spring is pulled down 2 cm and let go, then 6 cm and let go. How do the two periods compare, Zee?

    • The 6 cm swing is quicker
    • The 6 cm swing takes 3 times as long
    • They are the same
11. 10.

    Which change makes the period of a mass on a spring longer, Esme?

    • A bigger pull before letting go
    • A heavier mass
    • A stiffer spring