Curriculum
Course: IB Physics SL
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Curriculum

IB Physics SL

Theme A — Space, Time and Motion

0/80 Dr Dabour Hub Science Diagram and Course Material

Theme B — The Particulate Nature of Matter

0/87 Dr Dabour Hub Science Diagram and Course Material

Theme C — Wave Behaviour

0/60 Dr Dabour Hub Science Diagram and Course Material

Theme D — Fields

0/41 Dr Dabour Hub Science Diagram and Course Material

Theme E — Nuclear and Quantum Physics

0/59 Dr Dabour Hub Science Diagram and Course Material

Tools and Inquiry — IB Physics skills

0/54 Dr Dabour Hub Science Diagram and Course Material
Quiz

B.1.9 Specific Latent Heat – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
The unit of specific latent heat is
J K−1
J kg−1 K−1
J kg−1
W kg−1
2.
Why is Lv greater than Lf for water?
Particles are completely separated and the atmosphere is pushed back
Temperature is higher
c is larger
Water is heavier
3.
Energy to melt 2.0 kg of ice at 0 °C (Lf = 3.34 × 105) is
1.7 × 105 J
3.3 × 105 J
1.3 × 106 J
6.7 × 105 J
4.
During a change of state, the energy supplied increases
temperature
potential energy of particles
density only
mean kinetic energy
5.
A 500 W heater boils 0.020 kg of water in 90 s (just at 100 °C). Estimated Lv is
4.5 × 104 J kg−1
2.3 × 105 J kg−1
9.0 × 106 J kg−1
2.3 × 106 J kg−1
6.
Steam at 100 °C scalds more than boiling water at 100 °C because
condensation releases latent heat
steam has greater c
water is denser
steam is hotter
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Part of Theme B — The Particulate Nature of Matter — see every lesson and quiz in this unit.
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