Energy Transformation Review
Quiz by Robert Stephenson
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- Q 1/19Score 0A circuit is shown in the picture: The chemical energy in the battery is used to light up the light bulb on the other end. Chemical energy in the battery is transformed into which type of energy that runs through the circuit wire?29Mechanical energySound energyChemical energyElectrical energy
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19 questions
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- Q1A circuit is shown in the picture: The chemical energy in the battery is used to light up the light bulb on the other end. Chemical energy in the battery is transformed into which type of energy that runs through the circuit wire?Mechanical energySound energyChemical energyElectrical energy30sEditDelete
- Q2Sharon's running coach advised her to eat well-balanced meals in order to have plenty of energy for their upcoming race. Which transformation of energy is Sharon's coach referring to?Mechanical Energy ➜ Electrical EnergyThermal Energy ➜ Mechanical EnergyChemical Energy ➜ Mechanical EnergyKinetic Energy ➜ Potential Energy30sEditDelete
- Q3What happens to the energy in the pendulum as it swings from Point A to Point B?The chemical energy is converted to thermal energy.The potential energy is converted to kinetic energy.The kinetic energy is converted to potential energy.The kinetic energy is converted to chemical energy.30sEditDelete
- Q4Francesca connected several light bulbs to a battery as shown in the illustration below. After the lights bulbs were on for a few minutes, she placed her hand near one of the bulbs and discovered it was warm. Which type of energy transformation occurred?Light Energy ➜ Chemical EnergyElectrical Energy ➜ Thermal EnergyElectrical Energy ➜ Mechanical EnergyLight Energy ➜ Electrical Energy30sEditDelete
- Q5In some systems, energy will transform from one form to another. Which of the following is an example of electrical energy being transformed to both kinetic energy and sound energy?A television showing a movieA radio playing musicA tree falling in the woodsA remote control car being operated30sEditDelete
- Q6Trucks, cars, and motorcycles depend on internal combustion engines to move. An internal combustion engine uses air to burn a fuel, such as gasoline, which in turn causes the parts in the engine to move. What energy transformation occurs in an internal combustion engine?Chemical Energy ➜ Kinetic EnergyElectrical Energy ➜ Chemical EnergyThermal Energy ➜ Electrical EnergyKinetic Energy ➜ Chemical Energy30sEditDelete
- Q7The drawing shows the cars of a roller coaster racing down the track. roller coaster.png How does the law of conservation of energy best explain the energy of the cars on the track?The kinetic energy of the cars is being transformed into potential energy.The cars have potential energy, but no kinetic energy.The cars have kinetic energy, but no potential energy.The potential energy of the cars is being transformed into kinetic energy.30sEditDelete
- Q8The illustration shows the path that a ball rolls, from left to right. Which statement would correctly describe the energy of the ball as it travels along the path?The ball has the most potential energy at point D.The ball has the most kinetic energy at point C.The ball has the least potential energy at point A.The ball has the least kinetic energy at point D.30sEditDelete
- Q9Mechanical energy is defined as the sum of both the potential energy and the kinetic energy of an object. According to the law of conservation of energy, what happens to mechanical energy if the potential energy of an object decreases?Mechanical energy decreases.Mechanical energy increases.Mechanical energy increases and then decreases.Mechanical energy remains unchanged.30sEditDelete
- Q10One day after school, Geraldo rode his bicycle to the movies. The next day he explained to his classmates how his body had transferred kinetic energy to the pedals of his bicycle. How did Geraldo’s body transfer kinetic energy to his bicycle pedals?By using his leg muscles while pedalingBy storing energy from eating his breakfastBy walking his bicycle up a hillBy putting on the hand brakes30sEditDelete
- Q11During photosynthesis, plants absorb light energy from the Sun. Based on the law of conservation of energy, what happened to the light energy in the reaction?It was destroyed.It was converted into chemical energy.It was changed into oxygen gas.It was produced by the plant.30sEditDelete
- Q12The graph shows the relationship between the speed of a moving object and its kinetic energy. What conclusion can you draw from this graph?As the speed of an object increases, its kinetic energy decreases.Kinetic energy decreases as an object moves down a hill.Kinetic energy increases as an object moves up a hill.As the speed of an object increases, its kinetic energy increases.30sEditDelete
- Q13Emma constructed a simple motor. When connected correctly, the coil of copper wire spins. Which of the following best describes the energy transformation that takes place between the paper clips and the spinning coil?Electrical energy transforms into mechanical energy.Chemical energy transforms into electrical energy.Mechanical energy transforms into chemical energy.Mechanical energy transforms into electrical energy.30sEditDelete
- Q14Which of the following describes how energy moves through living systems?Energy can be created by organisms and can be passed on if it is not used by that organism.Energy is transformed and/or given off as heat as it passes from one organism to the next but the total amount always stays the same.Energy is created during photosynthesis.All of the energy is used up by organisms as they move, grow and reproduce so less energy is available for the next organism in the food chain.30sEditDelete
- Q15How is photosynthesis in plants similar to a solar panel?Both need oxygen in order to create chemical energy.Light energy is transformed into another useful type of energy.Both create energy to be used up.Photosynthesis transforms chemical energy into electricity.30sEditDelete
- Q16Friction is a force that opposes motion. When friction is present, heat is generated. According to the law of conservation of energy, which of the following statements is true about the energy associated with friction?Some of the energy is converted into thermal energy.Energy is created with friction.Most of the energy is transformed into chemical energy.Energy is destroyed by the force of friction.30sEditDelete
- Q17The unit for energy is the joule (J). If the energy content of an object is 1,000 J, but then later it is found to be 900 J, what happened to 100 J of its energy?Additional energy was created.The object transformed some of its energy to its surroundings.Some of the energy was destroyed.The object absorbed additional energy from its surroundings.30sEditDelete
- Q18In Kevin’s favorite comic book, the superhero has special powers. In one adventure, the superhero must stop an evil villain who threatens to destroy the city with a powerful energy blast. As he confronts the villain, he makes the following claims: 1: “I can create an energy force field to save the city.” 2: “I can destroy the energy before it destroys the city.” 3: “I can convert all the energy before it can do any harm to the city.” 4: “I can absorb all the energy and make it go away.” If the superhero must obey the law of conservation of energy, which of the above can he actually do?132430sEditDelete
- Q19Katrina tried to take pictures with her cell phone but discovered that its battery was dead. What happened to the battery?Only chemical energy remained stored in the battery.Kinetic energy had been changed into potential energy.All its stored energy had been destroyed.All the energy stored in the battery had been transformed.30sEditDelete
