Forces and Buoyancy

Front

What is buoyancy?

Back

Buoyancy is the upward force that water exerts on an object that is submerged in it, causing the object to float.

Front

Who discovered the principle of buoyancy?

Back

Archimedes, an Ancient Greek mathematician.

Front

What happens when an object displaces more water than its own weight?

Back

The object will float.

Front

What is the relationship between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.

Front

How is weight measured?

Back

Weight is measured in Newtons (N).

Front

What is the formula to calculate weight?

Back

Weight = mass × g, where g is the gravitational field strength.

Front

What is the gravitational field strength on Earth?

Back

Approximately 9.8 N/kg.

Front

What is the difference between mass and weight in different locations?

Back

Mass remains constant regardless of location, while weight can change depending on the gravitational field strength.

Front

What is a galaxy?

Back

A galaxy is a collection of billions of stars held together by the force of gravity.

Front

What is the solar system?

Back

The solar system is the system of objects that orbits the Sun, including planets, moons, and other celestial bodies.