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Lesson Worksheet: Patterns in Motion Science

In this worksheet, we will practice investigating the motion of a pendulum and applying our findings to a real life situation.

Q1:

Fill in the blank: A pendulum is an object attached to a string that .

  • Acannot move
  • Bcan swing back and forth
  • Ccan move by itself

Q2:

Two children are on swings of different lengths. One of the swings is shorter than the other.

Child swinging on playground on sunny summer day in a park

Predict which swing will complete the most number of swings in 15 seconds.

  • AThe longer swing
  • BThe shorter swing
  • CThey will complete the same number of swings.

Q3:

Use the results in the table to predict patterns in motion.

Length of String Number of Pendulum Swings in 15 s
Trial 1 Trial 2 Trial 3
60 cm 10 9 10
30 cm 15 14 15

How will using a longer string affect the number of pendulum swings?

  • AThere will be fewer swings.
  • BIt will have no effect on the number of swings.
  • CThere will be more swings.

Q4:

Look at the table.

Length of StringNumber of Pendulum Swings in 15 s
Trial 1Trial 2Trial 3
60 cm10910
30 cm151415

Fill in the blanks to describe the relationship between the length of string and the number of swings: The the string, the fewer swings the pendulum will complete in 15 s, and the the string, the more swings the pendulum will complete.

  • Ashorter, longer
  • Bweaker, stronger
  • Cstronger, weaker
  • Dlonger, shorter

Q5:

Compare the results in the table to predict patterns in motion.

Length of StringNumber of Pendulum Swings in 15 s
Trial 1Trial 2Trial 3
60 cm10910
30 cm151415

How will using a 14 cm string affect the number of pendulum swings?

  • AIt will cause more swings.
  • BIt will cause fewer swings.
  • CIt will have no effect on the number of swings.

Q6:

Pick an example of a real-life pendulum.

  • A
    Child swinging on playground on sunny summer day in a park.
  • B
    Cute little boy jumping rope near color wall
  • C
    Little boy in a rope park.
  • D
    Side view of cute little multiethnic children pulling rope in park

Q7:

During the investigation of the motion of a pendulum, which of the following parts of the experiment should stay the same?

  • AThe starting position
  • BThe type of string
  • CThe time
  • DThe washer
  • EAll of the answers are correct.

Q8:

Look at the diagram.

Fill in the blanks using the labels from the diagram to describe how to set up the investigation: Tape the to the edge of the desk, and tape the to the end of the pencil. Pull the nut back and level it with the , then let go of the and count the number of times it comes back to you within 15 seconds.

  • Apencil, string, desk, nut
  • Bnut, pencil, string, desk
  • Cdesk, pencil, nut, string
  • Dstring, desk, pencil, nut

Q9:

Read the passage and answer the question.

Child swinging on playground on sunny summer day in a park

Sophia and Isabella are swinging on swings of different lengths. Isabella’s swing is longer than Sophia’s. Their mom pushes them both the same way. Sophia and Isabella count how many times they swing before stopping. Sophia counts 10 swings and Isabella counts her swings too.

What are the two children investigating?

  • AThe lowest swings
  • BThe highest swings
  • CThe number of swings

Q10:

An investigation of the motion of a pendulum is shown. The motion of the pendulum is compared using different lengths of string.

Fill in the blank to describe what is being investigated in this experiment: This experiment investigates the effect of the on the number of pendulum swings.

  • Alength of the string
  • Bstrength of the string
  • Csize of the pencil
  • Dstrength of the pencil

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