Energy Systems Quiz

What is the formula to calculate the kinetic energy (KE) of an object?

If a ball with a mass of 2 kg is moving at a velocity of 3 m/s, what is its kinetic energy?

What is the formula to calculate the gravitational potential energy (PE) of an object?

A 5 kg book is placed on a shelf 2 meters high. What is its potential energy if the acceleration due to gravity is 9.8 m/s $$^2$$ ?

Which of the following is an example of an open system?

Which of the following is an example of a closed system?

If an object has a mass of 10 kg and is at a height of 5 meters, what is its potential energy assuming $$g = 9.8$$ m/s $$^2$$ ?

A roller coaster at the top of a hill has a potential energy of 2000 J. What happens to this energy as it starts descending the hill?

What is the kinetic energy of a 50 kg object moving at a speed of 10 m/s?

Which of the following scenarios describes a closed system?