Which of the following best explains energy transformations that would occur if the archer were to release the bowstring in each picture.
Answers
Answer:
Eddie and Val observed the picture of an athlete running in a race.
Eddie stated the picture shows potential energy being transformed to kinetic energy. Val stated that it shows chemical energy being transformed to mechanical energy. Which best explains who is correct?
Both Eddie and Val are correct because chemical energy is a type of potential energy and mechanical energy includes kinetic energy.
Plants are responsible for a very important energy transformation, as shown.
Which energy transformation does the picture best illustrate?
radiant to chemical
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.
Which best describes Alana's error?
Kinetic energy is not made; it is a result of energy transformation.
The diagram shows a swinging pendulum.
Which best explains what happens to the motion of the pendulum?
The mechanical energy transforms to thermal energy as the pendulum slows and eventually stops moving.
Energy can be transformed from one form to another. The diagram shows one such process.
Which energy transformation is represented in the diagram?
nuclear to thermal and radiant
Simone created a chart to summarize the energy transformations that take place when energy from the wind is used to generate electricity.
Which best completes the chart?
NOT
nuclear energy transformed to electrical energy
Which activity directly converts energy from the Sun into chemical energy?
a bean plant making its own food to grow
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?
radiant, electrical, mechanical
Which is an example of transforming potential energy to kinetic energy? Check all that apply.
NOT
changing chemical energy to thermal energy
changing nuclear energy to radiant energy
changing radiant energy to electrical energy
changing mechanical energy to chemical 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?
Digested food is a source of potential energy.
Explanation: