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

C.3.4 Refraction of Waves – Check yourself

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1.
When a wave enters a medium in which it travels more slowly, its ray bends
Away from the normal
Along the boundary
Not at all
Toward the normal
2.
Waves of wavelength 5.0 cm in deep water enter shallow water where speed falls to 60% of its value. The new wavelength is
8.3 cm
5.0 cm
3.0 cm
1.5 cm
3.
Which quantity is the same on both sides of the boundary?
Speed
Frequency
Wavelength
Direction
4.
Sound at night bends downward because
Sound is slower in the cooler air near the ground
Air near the ground is warmer
Sound is faster near the ground
Cold air absorbs sound
5.
A wave arrives along the normal to a boundary and enters a slower medium. It
Bends toward the normal
Bends away
Is totally reflected
Does not change direction but its wavelength shortens
6.
Waves go from medium 1 to 2 with speed ratio v1/v2 = 1.5. If θ1 = 30°, then sin θ2 is
0.75
0.50
0.33
0.20
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