Catch only the periodic motions

Exercise and reference answers

Items

1. Matches the category

   Yes

   Item

   Wall clock bob

2. Matches the category

   Yes

   Item

   Engine piston

3. Matches the category

   Yes

   Item

   Planet orbit

4. Matches the category

   Yes

   Item

   Human heartbeat

5. Matches the category

   Yes

   Item

   Halley's comet

6. Matches the category

   Yes

   Item

   Uniform circle

7. Matches the category

   No

   Item

   Projectile

8. Matches the category

   No

   Item

   Rectilinear

Category

Periodic motion

Instructions

Use the arrow buttons to slide the basket under a motion that repeats, and let the rest fall.

Explanation