Week 16 - Potential and Kinetic Energy

Front

What is chemical potential energy?

Back

Chemical potential energy is the energy stored in the bonds of chemical compounds, like wood, batteries, gasoline, and food.

Front

What does the law of conservation of energy state?

Back

Energy cannot be created or destroyed, only converted from one form to another.

Front

How can an object's gravitational potential energy be increased?

Back

By lifting the object higher.

Front

What is kinetic energy (KE)?

Back

Kinetic energy is the energy of an object due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Front

What factors affect kinetic energy?

Back

Kinetic energy depends on the mass of the object and its velocity.

Front

If two objects are moving at the same speed, which has greater kinetic energy?

Back

The object with greater mass has greater kinetic energy.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses because of its position in a gravitational field, typically related to its height.

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 kinetic energy when an object speeds up?

Back

The kinetic energy increases as the speed of the object increases.

Front

What is the relationship between potential energy and kinetic energy?

Back

Potential energy can be converted into kinetic energy and vice versa, demonstrating the conservation of energy.