Sectieoverzicht

  • If you place different objects in a bowl of water, for example, coins, pens, erasers and a ball, you will notice that some of the objects float on water, while others sink. Why is that? In the next video we explore the main reasons an object will float, sink or remain at the same depth.


    Experimenting with Buoyant force

    Watch the next video to see an experiment that explains the upward force (thrust) exerted on objects placed in water.



    • Leerlingen moeten
      Als voltooid aanduiden

      Interactive video: Buoyancy effects

      In this interactive video you will explore the laws of flotation. Make sure to answer all of the questions in the video.




    • Leerlingen moeten
      Als voltooid aanduiden

      Activity: Determining densities

      Density is an important concept, and has many applications in science and technology. 

      Density is defined as the amount of mass per volume a substance contains, and it is normally expressed in units of \( g/cm^3\) or \( kg/cm^3\).

      Watch the next video for an activity on finding the density of different objects.