Lifeboats Flashcard Review

Front

What is buoyancy?

Back

Buoyancy is the ability of an object to float in water or air.

Front

What is a dependent variable?

Back

The dependent variable is the variable that is measured in an experiment, often referred to as the data.

Front

What causes the water level to rise when you sit in a bathtub?

Back

The water level rises due to displacement, which is the volume of water that is pushed aside by an object.

Front

In a lifeboat investigation, what was the dependent variable?

Back

The dependent variable was the number of passengers.

Front

What is a graduated cylinder?

Back

A graduated cylinder is a tool used to measure the volume of liquids accurately.

Front

What is density?

Back

Density is the mass of an object divided by its volume, determining how heavy or light it is for its size.

Front

What is displacement?

Back

Displacement is the amount of fluid that is moved out of the way when an object is placed in it.

Front

What is an independent variable?

Back

The independent variable is the variable that is changed or controlled in an experiment to test its effects.

Front

What is a controlled variable?

Back

A controlled variable is a factor that is kept constant during an experiment to ensure that the results are valid.

Front

How does buoyancy relate to lifeboats?

Back

Buoyancy is crucial for lifeboats as it allows them to float and carry passengers safely on water.