CourseGCSE Combined Science
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Required practical: force and extension of a spring

Video coming soon

The key ideas and the summary sheet for this lesson are ready now.

Key ideas

  1. Clamp the stand and keep the metre rule vertical.

  2. Extension = new reading − original reading.

  3. A straight line through the origin means force and extension are proportional; the gradient is k.

  4. Read at eye level, wait for the spring to stop bouncing, and repeat.