Y8 Energy: Two Truths and a Lie

Front

What is potential energy?

Back

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

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. It depends on the mass of the object and the square of its velocity.

Front

How can potential energy be converted into kinetic energy?

Back

Potential energy can be converted into kinetic energy when an object moves from a higher position to a lower position, such as a ball falling from a height.

Front

What is an example of potential energy?

Back

An example of potential energy is a rock held at the top of a hill, which has the potential to roll down.

Front

What is an example of kinetic energy?

Back

An example of kinetic energy is a moving car or a running athlete.

Front

What is the relationship between height and potential energy?

Back

The potential energy of an object increases with height; the higher the object, the more potential energy it has due to gravitational force.

Front

Can potential energy be converted into other forms of energy?

Back

Yes, potential energy can be converted into kinetic energy, thermal energy, and other forms of energy depending on the system.

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 transformed from one form to another.

Front

What happens to potential energy as an object falls?

Back

As an object falls, its potential energy decreases while its kinetic energy increases, maintaining the total energy of the system.

Front

What is an example of kinetic energy being transformed into potential energy?

Back

An example is when a person throws a ball upwards; as the ball rises, its kinetic energy is converted into potential energy.