06c - Calculating Kinetic and Potential Energy

Front

What is kinetic energy?

Back

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

Front

How is potential energy defined?

Back

Potential energy is the stored energy of an object due to its position or state, often associated with gravitational potential energy, which depends on height and mass.

Front

What is the formula for calculating gravitational potential energy?

Back

The formula for gravitational potential energy (PE) is PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

What factors affect gravitational potential energy?

Back

Gravitational potential energy depends on the height and mass of the object.

Front

What type of energy is stored in a battery?

Back

The energy stored in a battery is potential energy.

Front

If a ping pong ball has a mass of 2.45 g and a speed of 4.0 m/s, what is its kinetic energy?

Back

The kinetic energy is 0.0196 J.

Front

At which point is potential energy greatest in a vertical motion scenario?

Back

Potential energy is greatest at the highest point of the object's motion.

Front

What is the relationship between mass and kinetic energy?

Back

Kinetic energy increases with an increase in mass, as it is directly proportional to mass in the formula KE = 1/2 mv².

Front

How does speed affect kinetic energy?

Back

Kinetic energy increases with the square of the speed; doubling the speed results in four times the kinetic energy.

Front

What is the significance of the height in potential energy?

Back

Height is significant in potential energy because the higher an object is, the more gravitational potential energy it has.