Curriculum
Course: IB Physics HL
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Curriculum

IB Physics HL

Theme A — Space, Time and Motion

0/125 Dr Dabour Hub Science Diagram and Course Material

Theme B — The Particulate Nature of Matter

0/105 Dr Dabour Hub Science Diagram and Course Material

Theme C — Wave Behaviour

0/73 Dr Dabour Hub Science Diagram and Course Material

Theme D — Fields

0/77 Dr Dabour Hub Science Diagram and Course Material

Theme E — Nuclear and Quantum Physics

0/89 Dr Dabour Hub Science Diagram and Course Material

Tools and Inquiry — IB Physics skills

0/43 Dr Dabour Hub Science Diagram and Course Material
Quiz

A.3.1 Principle of Conservation of Energy – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
Start Quiz
1.
Which statement is the principle of conservation of energy?
Energy is used up when a machine runs
Energy can only be transferred or transformed, never created or destroyed
Mechanical energy is always constant
Kinetic energy always equals potential energy
2.
A 0.50 kg ball falls from rest through 4.0 m and reaches 8.0 m s−1. How much energy is dissipated? (g = 9.8 m s−2)
0 J
3.6 J
16 J
19.6 J
3.
A motor does 600 J of useful work and 150 J is lost as heat. What energy was supplied?
450 J
600 J
750 J
900 J
4.
Which is a way of transferring energy into a system?
Temperature
Work done on it
Density
Momentum
5.
A pendulum swings and gradually stops. What has happened to its initial energy?
It has been destroyed
It has become thermal energy of the air and pivot
It has become momentum
It remains as kinetic energy
6.
The energy-time graph of a falling object shows KE rising and GPE falling. If total energy is constant the sum of the two lines is
increasing
decreasing then increasing
a horizontal line
a curve through the origin
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Part of Theme A — Space, Time and Motion — see every lesson and quiz in this unit.
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