The amount of kinetic energy an object has depends on its Show Motion This diagram shows a skier moving down a hill The skier has potential and kinetic energy. Which set of terms best defines what affects kinetic energy and potential energy, respectively? Velocity, height Which statement best compares potential and kinetic energy? Only kinetic energy increases when the velocity of an object increases. Seema knows the mass of a basketball. What other information is needed to find the ball's potential energy? acceleration due to gravity and the height the ball reaches A roller coaster with a potential energy of 235,200 J sits at the top of a 30 m high hill. What is the mass of the roller coaster? (Formula: PE = mgh) 800 kg A sled is at rest at the top of a 2 m high slope. The sled has a mass of 45 kg. The sled's potential energy is (Formula: PE = mgh) 882 The table shows information about four objects resting at the top of a hill. Four Objects at Rest on a Hill Object Mass (kg) Potential Energy (J) Which object is the tallest hill? W Z Ella has a mass of 56 kg, and Tyrone has a mass of 68 kg. Ella is standing at the top of a skateboard ramp that is 1.5 meters tall. Which conclusion is best supported by the given information? If Tyrone stands at the top of the same ramp, his potential energy will be less than Ella's. If Tyrone stands at the top of a 2 m high ramp, his potential energy will be greater than Ella's. Which factors are used to calculate the kinetic energy of an object? Check all that apply. gravity Mass The kinetic energy of a ball with a mass of 0.5 kg and a velocity of 10 m/s is 25 A car is moving at 12 m/s and has a mass of 600 kg. What is the kinetic energy of the car? 36,300 J 43,200 J An object has a velocity of 8 m/s and a kinetic energy of 480 J. What is the mass of the object? 7.5 kg 15 kg The table shows information about four students who are running around a track. Motion of Students Student name Mass (kg) Velocity (m/s) Which statement is supported by the information in the chart? Autumn has more kinetic energy than Chiang. Mohammed has less kinetic energy than Autumn. A soccer ball is traveling at a velocity of 50 m/s. The kinetic energy of the ball is 500 J. What is the mass of the soccer ball? 0.1 kg 0.4 kg The diagram shows a ball resting at the top of a hill. Which statement best describes the energy in this system? The potential energy in the system is greatest at X. The potential energy in the system is greatest at X. This diagram shows a baseball's motion. Which statement is best supported by the diagram? Kinetic energy becomes potential energy between points R and S. Maximum potential energy is at point R. The diagram shows a person holding a bow and arrow. Which will most likely increase the kinetic energy in this system? pulling farther back on the string releasing the string If the kinetic and potential energy in a system are equal, then the potential energy increases. What happens as a result? Total energy increases. Energy of motion decreases. Olivia is on a swing at the playground. At which point is her kinetic energy increasing and her potential energy decreasing? W X Which is occurring when work is being done? Energy is being reverted. Energy is being transferred. Four people make observations recorded in the table. Person Observation Ron Heat moves from hot to cold areas Which best describes what all of the observations have in common? They involve nuclear energy. They involve changes in energy. If Jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, ________ is being done. work Shondra takes notes in class. One line of Shondra's notes is irrelevant to the rest of her notes. Which line is about a different topic than the rest of Shondra's notes? I The unit for energy is the _______. joule Work can ________ energy between objects and can cause a change in the form of energy. transfer Which statement best defines the relationship between work and energy? Work can transfer energy between objects and increase radiant energy. Work can transfer energy between objects and cause a change in the form of energy. Gabriel is performing an experiment in which he is measuring the energy and work being done by a ball rolling down a hill. Which statement best describes Gabriel's measurements? They will remain constant. They will both be recorded in joules. When a spring is compressed, the energy changes from kinetic to potential. Which bestdescribes what is causing this change? work
work Abin is doing work by lifting a bowling ball. Which statement could be made about the energy in this situation? It is being transferred from the ball to his arm muscles. It is being transferred from his arm muscles to the ball. Which statement best describes the work and energy in these examples? Example 1: Running a car requires gas. The gas and food are examples of energy. The gas and food are examples of energy. _______ energy is the energy of an object has because of its motion? Kinetic What is the energy of an object because of its potential and kinetic energies? chemical energy mechanical energy What are two types of mechanical energy? electrical and kinetic elastic and gravitational What kind of energy involves the flow of positive charges? thermal electrical Johanna is studying what happens to the energy as a ball rolls down a ramp. What is she studying? Check all that apply. gravitational potential energy gravitational potential energy Atoms contain subatomic particles called protons and neutrons. When these protons and neutrons split, a lot of energy is released. What kind of energy is this? nuclear radiant When Javier touches a hot mug of tea, energy is transferred from the surface of the mug to his hand. What kind of energy is this? nuclear thermal When Anna eats an apple, the sugars in that apple are broken down into the substance called glucose. Glucose is then burned in her body for energy. One of the body parts that needs this energy is the heart, which beats due to electrical impulses. A byproduct of this glucose breakdown is the heat that warms her body and is later released. Which identifies the energy transformations that take place in Anna's body as this process takes place? Mechanical energy is converted to kinetic energy, which is then converted to potential energy. Chemical energy is converted to thermal energy and electrical energy. What is the mass of the soccer ball quizlet?b. A soccer ball weighs 423 grams.
What is the energy of an object because of its potential and kinetic energies?The sum of an object's potential and kinetic energies is called the object's mechanical energy. As an object falls its potential energy decreases, while its kinetic energy increases.
What two factors determine the kinetic energy of an object?What Factors Affect Kinetic Energy? The two main factors that affect kinetic energy are mass and speed. Why? Because the motion of an object depends on how fast it's traveling, but also how much mass it has, though velocity is the more important factor.
Which statements describe kinetic and potential energy?Potential energy can be described as the energy stored in an object that is at rest, and that could be used to accomplish some task. Kinetic energy is the energy of an object in motion.
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Which statement is supported by the information in the chart Autumn
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