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Ninth Grade (Grade 9) Energy and Momentum Questions

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Grade 9 Energy and Momentum
An example of the conversion of gravitational potential energy into kinetic energy is                             .
  1. a falling raindrop
  2. a gasoline powered engine
  3. striking a match
  4. a hockey puck sliding on ice
Grade 9 Energy and Momentum
Mechanical energy is                                                         .
  1. found in machinery only
  2. usually measured at the atomic level
  3. the sum of the chemical and thermal energy of an object
  4. the sum of the kinetic and potential energy of an object
Grade 9 Energy and Momentum
Which form of energy does a plant store when light is transformed during photosynthesis?
  1. chemical energy
  2. thermal energy
  3. mechanical energy
  4. electrical energy
Grade 9 Energy and Momentum
Potential energy + kinetic energy is equal to                               .
  1. gravitational potential energy
  2. thermal energy
  3. chemical energy
  4. mechanical energy
Grade 9 Energy and Momentum
Newton's Third Law of Motion is also called the                    .
  1. law of inertia
  2. law of momentum
  3. law of velocity
  4. law of acceleration
Grade 9 Energy and Momentum
Energy stored in the bonds between atoms is called
  1. kinetic energy.
  2. mechanical energy.
  3. chemical energy.
  4. thermal energy.
Grade 9 Energy and Momentum
The total amount of kinetic and potential energy in a system is called
  1. chemical energy.
  2. mechanical energy.
  3. radiant energy.
  4. thermal energy.
Grade 9 Energy and Momentum

This question is a part of a group with common instructions. View group »

As the rubber band is released and moves forward, which of the following is true?
  1. The total energy of the system is increasing.
  2. Potential energy is being converted to kinetic energy.
  3. Kinetic energy is being converted to potential energy.
  4. All of the energy is disappearing from the system.
Grade 9 Energy and Momentum
The ability of a body to do work is its                .
  1. power
  2. momentum
  3. inertia
  4. energy
Grade 9 Energy and Momentum
When a car burns fuel, which of the following best describes what happens to the energy of the system?
  1. Chemical energy is used and destroyed in the process
  2. Chemical energy is transformed to mechanical energy and some waste heat
  3. Mechanical energy is created
  4. Mechanical energy is transformed into chemical energy
Grade 9 Energy and Momentum
Photosynthesis, the process where plants use light to make food, is an example of
  1. energy being created.
  2. work being done.
  3. light energy being transformed to chemical energy.
  4. power being used.
Grade 9 Energy and Momentum
If an object's speed doubles, its kinetic energy                .
  1. doubles
  2. quadruples
  3. stays the same
  4. is halved
Grade 9 Energy and Momentum
Kaylee and Jessica were moving boxes of quiz bowl questions. They each moved 10 boxes. Jessica moved the 10 boxes in 30 minutes, while Kaylee did it in 20 minutes. Assuming the boxes required the same amount of force to move, and they were all moved the same distance, which of the following is true?
  1. Kaylee did more work than Jessica, because she did it faster.
  2. Jessica did more work than Kaylee, because she worked longer.
  3. Kaylee had more power than Jessica but did not do more work.
  4. None of the above are true.
Grade 9 Energy and Momentum
Which is true about using energy?
  1. When energy is used, it disappears forever.
  2. When energy is used, it can transform to new types but can never disappear.
  3. There is an unlimited amount of energy in the universe.
  4. A falling object increases its total energy.
Grade 9 Energy and Momentum
The energy needed to separate the nucleus against the forces which holds them together is                  .
  1. nuclear energy
  2. mechanical energy
  3. ionization energy
  4. binding energy
Grade 9 Energy and Momentum
Which of the following does not demonstrate a form of energy?
  1. Electricity
  2. Light
  3. A moving object
  4. All of these are forms of energy
Grade 9 Energy and Momentum
The process by which engine fuels burn is                .
  1. radiation
  2. convection
  3. combustion
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