Physics Revision Work Energy Power SEC 3/4/5

6 Questions | Total Attempts: 155

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Energy Quizzes & Trivia

Questions and Answers
  • 1. 
    A 2N force pushes a box. The box moves 3.0m. How much work is done?
    • A. 

      6J

    • B. 

      1.5J

    • C. 

      6W

    • D. 

      1.5W

  • 2. 
    A 4 kg ball moves with 3m/s. what is its kinetic energy?
    • A. 

      12J

    • B. 

      36J

    • C. 

      18J

    • D. 

      9J

  • 3. 
    A tennis ball 200g is 2.0m above the ground. G=10N/kg. How much gravitational potential energy does the ball have?
    • A. 

      4000J

    • B. 

      40J

    • C. 

      100J

    • D. 

      4J

  • 4. 
    A electric dry cell (battery) is used to power a lamp. what energy conversion takes place?
    • A. 

      Chemical --> electrical energy

    • B. 

      Chemical --> light energy only

    • C. 

      Chemical --> electrical energy --: heat and light energy

    • D. 

      Chemical --> electrical energy --: heat energy only

  • 5. 
    Princple of conservation of energy states that energy cannot be created nor destroyed. Energy is transform from one __________ into another.
  • 6. 
    When a ball is thrown up vertically, its ____________energy decreases, while its gravitational potential energy increases
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