Energy Transformations Answers

Alana summarized what happens when a ball sitting on top of a grassy hill rolls down the hill.The motionless ball has potential energy. Once the ball starts to roll down the hill, new kinetic energy is made. As the ball rolls across the grass, it slows down. The kinetic energy of the ball is converted to other forms of energy.

The human body stores chemical energy from digested food. Some of the chemical energy is converted into mechanical energy when the body moves. Which statement is best supported by this information?

Taro stated that when someone hits a golf ball with a club, the amount of energy the ball has changes, the amount of energy that the club has changes, and the total energy of the system that includes the ball and the club increases. Which best explains Taro’s error?

During nuclear fission and fusion, what is matter that seems to disappear actually converted into?

Plants are responsible for a very important energy transformation, as shown.

Solar-powered cars use energy from the Sun to work. A panel on the car absorbs light energy from the Sun, which then generates an electric current. This electric current, in turn, allows the car to move. Which shows the correct order of energy transformations that take place in a solar-powered car?

What happens in terms of energy when a moving car hits a parked car, causing the parked car to move?

What are the two main types of energy?

Savion listed the steps involved when nuclear power plants generate electricity. Nuclear reaction occurs. Nuclear energy is converted to radiant and thermal energy. Heat is used to generate steam. Light and heat are released. Steam turns turbines. Mechanical energy is converted to electrical energy.

Which activity directly converts energy from the Sun into chemical energy?