Curriculum
Course: Igcse Physics
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Curriculum

Igcse Physics

1. Motion, Forces and Energy

0/161 Dr Dabour Hub Science Diagram and Course Material

2. Thermal Physics

0/75 Dr Dabour Hub Science Diagram and Course Material

3. Waves

0/77 Dr Dabour Hub Science Diagram and Course Material

4. Electricity and Magnetism

0/119 Dr Dabour Hub Science Diagram and Course Material

5. Nuclear Physics

0/39 Dr Dabour Hub Science Diagram and Course Material

6. Space Physics

0/47 Dr Dabour Hub Science Diagram and Course Material
Quiz

1.7.4 Conservation of Energy – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
Conservation of energy states that
energy is used up in a process
kinetic energy is constant
energy cannot be created or destroyed
potential energy is never changed
2.
A ball of mass 1.0 kg falls from rest through 10 m with no air resistance. Its speed is about
10 m/s
98 m/s
20 m/s
14 m/s
3.
A real pendulum eventually stops because
energy is transferred to thermal stores by friction and air resistance
energy is destroyed
gravity stops
its mass decreases
4.
On a Sankey diagram, the width of an arrow shows
time
temperature
the amount of energy
force
5.
A device takes in 500 J and wastes 120 J. The useful output is
620 J
380 J
120 J
500 J
6.
A ball dropped from 2.0 m rebounds to 1.5 m. The fraction of its energy that was dissipated in the bounce is
75%
25%
33%
50%
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Part of 1. Motion, Forces and Energy — see every lesson and quiz in this unit.
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