Buoyancy: The Forces That Determine Why Objects Float or Sink
Discover the forces at work underwater, which dictate why large boats float but small pebbles sink. Physics - Forces - Learning Points. The buoyant force is an upward-acting force determined by the weight of the displaced water. Ships float because they are hollow and have a large buoyant force. Density is the amount of mass in a set volume. An object will float if its density is less than the buoyant force. A Twig Curriculum Film. Delivering key learning points. Get straight to the facts in just three minutes – directly linked to core learning, Twig's curriculum films will fit neatly into your lesson plans.
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