Potential and Kinetic Energy Review

Front

What is the definition of potential energy?

Back

Potential energy is the energy stored in an object due to its position or state.

Front

What is the definition of kinetic energy?

Back

Kinetic energy is the energy of an object in motion, dependent on its mass and velocity.

Front

How is gravitational potential energy calculated?

Back

Gravitational potential energy is calculated using the formula: PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

What happens to potential energy as an object is lifted higher?

Back

As an object is lifted higher, its gravitational potential energy increases.

Front

What happens to kinetic energy as an object's speed increases?

Back

As an object's speed increases, its kinetic energy increases, specifically following the formula: KE = 1/2 mv².

Front

What is the relationship between potential energy and kinetic energy in a closed system?

Back

In a closed system, the total mechanical energy (potential + kinetic) remains constant, demonstrating the principle of conservation of energy.

Front

What is an example of potential energy in everyday life?

Back

An example of potential energy is a book on a shelf, which has energy due to its height above the ground.

Front

What is an example of kinetic energy in everyday life?

Back

An example of kinetic energy is a moving car, which has energy due to its motion.

Front

What is the unit of measurement for energy?

Back

The unit of measurement for energy is the Joule (J).

Front

How does height affect gravitational potential energy?

Back

Gravitational potential energy increases as height increases, since it is directly proportional to height.