diff --git a/docs/ce1/ece105.md b/docs/ce1/ece105.md
index d69f8ec..8254f68 100644
--- a/docs/ce1/ece105.md
+++ b/docs/ce1/ece105.md
@@ -23,3 +23,7 @@ Please see [SL Physics 1#2.2 - Forces](/g11/sph3u7/#22-forces) for more informat
 ## Work
 
 Please see [SL Physics 1#2.3 - Work, energy, and power](/g11/sph3u7/#23-work-energy-and-power) for more information.
+
+## Momentum and impulse
+
+Please see [SL Physics 1#2.4 - Momentum and impulse](/g11/sph3u7/#24-momentum-and-impulse) for more information.