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

2.2.5 Evaporation – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
Which particles are most likely to escape from a liquid surface during evaporation?
The slowest ones
The fastest ones moving outwards
All particles equally
Only those at the bottom
2.
Why does evaporation cool the remaining liquid?
The fastest particles leave, lowering the average kinetic energy
The liquid contracts
More particles are added
Cold air enters
3.
Which change will NOT increase the rate of evaporation?
Raising the temperature
Increasing the surface area
Adding a draught
Raising the humidity of the air
4.
One difference between evaporation and boiling is that evaporation
occurs at 100 °C only
needs energy
happens only at the surface
produces a gas
5.
A graph of mass of water in a dish against time at constant conditions is best described as
constant
decreasing steadily
increasing
oscillating
6.
Why does a dog pant on a hot day?
To increase evaporation from its tongue and cool down
To lose mass
To raise humidity
To heat its body
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Part of 2. Thermal Physics — see every lesson and quiz in this unit.
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