PS2 Lessons 1-3

Front

What is gravitational energy?

Back

Gravitational energy is the potential energy held by an object because of its high position compared to a lower position. It is the energy stored in an object as it is lifted against the force of gravity.

Front

At which point is gravitational energy greatest?

Back

Gravitational energy is greatest at the highest point of an object, such as point W in a hill scenario.

Front

What does it mean to convert energy?

Back

To convert energy means to change it from one form to another, such as from gravitational energy to kinetic energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. The faster an object moves, the more kinetic energy it has.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. It has the potential to be converted into kinetic energy.

Front

Give an example of potential energy.

Back

A picture hung on the wall has potential energy because it is elevated and can fall due to gravity.

Front

What happens to a ball rolling down a hill?

Back

As a ball rolls down a hill, it converts gravitational energy into kinetic energy.

Front

What type of energy does an acorn hanging from an oak tree have?

Back

An acorn hanging from an oak tree has gravitational energy because it is held up against the force of gravity.

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only converted from one form to another.

Front

What is an example of kinetic energy?

Back

A moving car is an example of kinetic energy because it is in motion.