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Understanding Lifeboat Capacity: Key Concepts and Variables in Experimental Design

This investigation explores the concept of lifeboat capacity, focusing on how various factors affect the maximum volume of fluid a container can hold. We will examine independent and dependent variables in controlled experiments while determining the number of passengers a boat can support. Key methodologies include maintaining a standard loading approach, such as placing pennies gently and evenly without shaking the basin. Data will be analyzed using two-coordinate graphs to visualize relationships and predict outcomes in lifeboat capacity.

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Understanding Lifeboat Capacity: Key Concepts and Variables in Experimental Design

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Presentation Transcript

  1. LIFEBOAT INVESTIGATION • CAPACITY

  2. KEY CONCEPTS VARIABLE CAPACITY CAPACITY IS THE MAXIMUM VOLUME OF FLUID A CONTAINER CAN HOLD • A VARIABLE IS ANYTHING THAT YOU CAN CHANGE IN AN EXPERIMENT THAT MIGHT AFFECT THE OUTCOME

  3. KEY CONCEPTS • THE NUMBER OF PASSENGERS A BOAT CAN HOLD IS AFFECTED BY VARIABLES SUCH AS PLACEMENT, WATER MOVEMENT AND BOAT SIZE

  4. KEY CONCEPTS • ONLY ONE VARIABLE CAN CHANGE IN A CONTROLLED EXPERIMENT, SO NEED A STANDARD BOAT LOADING METHOD. • PLACE PENNIES GENTLY • PLACE PENNIES EVENLY • DON’T SHAKE THE BASIN • DRY PENNIES

  5. KEY CONCEPTS INDEPENDENT VARIABLE DEPENDENT VARIABLE WHAT YOU FIND OUT BY DOING THE EXPERIMENT IS THE DEPENDENT VARIABLE, ON THE Y AXIS. THE NUMBER OF PASSENGERS THE BOAT CAN HOLD • WHAT IKNOWBEFORE THE EXPERIMENT STARTS IS THE INDEPENDENT VARIABLE, ON THE X AXIS • BOAT CAPACITY (SIZE)

  6. KEY CONCEPTS • A TWO-COORDINATE GRAPH DISPLAYS THE RELATIONSHIP BETWEEN THE INDEPENDENT AND DEPENDENT VARIABLES IN AN EXPERIMENT. • THE GREATER THE CAPACITY, THE MORE PASSENGERS A BOAT CAN HOLD.

  7. KEY CONCEPTS • TWO-COORDINATE GRAPHS CAN BE USED TO PREDICT EVENTS. • THE LINE DRAWN THROUGH A CLUSTER OF DATA POINTS IS CALLED A TREND LINE.

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