24-25 Energy Study Guide #21-28

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion. It depends on the mass of the object and the square of its speed.

Front

How is kinetic energy calculated?

Back

Kinetic energy (KE) is calculated using the formula: KE = 1/2 mv², where m is mass and v is velocity.

Front

What factors affect kinetic energy?

Back

Kinetic energy is affected by the mass of the object and its speed. More mass or higher speed results in greater kinetic energy.

Front

What is gravitational potential energy?

Back

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

Front

How is gravitational potential energy calculated?

Back

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

Front

At which point does an object have the greatest gravitational potential energy?

Back

An object has the greatest gravitational potential energy at its highest point, where it has the most height above the ground.

Front

What is the relationship between speed and kinetic energy?

Back

The kinetic energy of an object increases as its speed increases, since kinetic energy is proportional to the square of the speed.

Front

Why does mass affect kinetic energy?

Back

Mass affects kinetic energy because a heavier object (more mass) will have more kinetic energy at the same speed compared to a lighter object.

Front

Does a moving object have kinetic energy?

Back

Yes, a moving object has kinetic energy because it is in motion.

Front

What happens to kinetic energy when an object slows down?

Back

When an object slows down, its kinetic energy decreases because kinetic energy is directly related to speed.