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Alhussan Physics — Stage 8

Chapter 6: Forces, Motion and Pressure

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Chapter 7: Light

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Chapter 8: Magnetism and Electromagnets

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Chapter 9: Energy Resources

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Chapter 10: The Earth in Space (Galaxies and Asteroids)

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Quiz

Physics 7.7 Dispersion — Quiz

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  • Questions count: 50
  • Passing grade: B+
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1.
Which term matches this definition? “Mixture of all colours.”
White light
Secondary colours
Magenta
Camouflage
2.
Which statement is correct?
A rectangular block splits white light visibly.
Prisms add colour to light.
A prism splits white light into colours.
Rainbows need the Sun in front of you.
3.
Red is 700 nm and violet 400 nm. Ratio red ÷ violet?
300.00
1.75
0.57
1100.00
4.
Convert 700 nm to m (× 10⁻⁹). Give the answer in units of 10⁻⁷ m.
7 × 10⁻⁷ m
70,000 × 10⁻⁷ m
700 × 10⁻⁷ m
70 × 10⁻⁷ m
5.
Which statement is correct?
Rainbows need the Sun in front of you.
A spinning colour wheel looks black.
A normal bulb looks white but white light is a mixture.
Violet has the longest wavelength.
6.
Spectrum width doubles when distance doubles. 0.6 cm at 20 cm; width at 50 cm?
0.2 cm
1.5 cm
0.6 cm
1.2 cm
7.
Convert 500 nm to m (× 10⁻⁹). Give the answer in units of 10⁻⁷ m.
500 × 10⁻⁷ m
50,000 × 10⁻⁷ m
50 × 10⁻⁷ m
5 × 10⁻⁷ m
8.
Amount of bending of colours in a prism (°). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 1
A
B
C
D
9.
Which statement is correct?
White light is a single colour.
A spinning colour wheel looks black.
Violet light is bent the most.
Rainbows need the Sun in front of you.
10.
Which statement is NOT correct?
Rainbows form when sunlight is dispersed by raindrops.
Colours travel at different speeds in a vacuum.
White light through a rectangular block stays white.
The order is red, orange, yellow, green, blue, indigo and violet.
11.
Which term matches this definition? “Band of colours: red, orange, yellow, green, blue, indigo, violet.”
White light
Pigment
Spectrum
Focus
12.
5 of 20 rainbows were double rainbows. Percentage?
250%
75%
15%
25%
13.
Rainbows seen per month in a town. About how many times bigger is May than Jan?
Dr Dabour Hub Academy - figure 2
4.5
3.0
6.0
1.5
14.
Amount of bending of colours in a prism (°). What is the value for Yellow?
Dr Dabour Hub Academy - figure 3
38.3
38.6
38.0
39.0
15.
Which term matches this definition? “Different for each colour.”
Secondary colours
Ibn al-Haytham
Emission theory
Wavelength
16.
Spectrum width doubles when distance doubles. 1.2 cm at 10 cm; width at 30 cm?
1.2 cm
3.6 cm
2.4 cm
0.4 cm
17.
Wavelength of colours (nm). About how many times bigger is Red than Violet?
Dr Dabour Hub Academy - figure 4
3.0
2.0
1.0
4.0
18.
Which statement is NOT correct?
Colours in white light differ in wavelength.
Newton showed a second prism can recombine the colours.
Prisms add colour to light.
The order is red, orange, yellow, green, blue, indigo and violet.
19.
Rainbows seen per month in a town. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 5
A
B
C
D
20.
Rainbows seen per month in a town. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 6
A
B
C
D
21.
Which is the correct definition of “Newton”?
Huygens' idea that light is a wave.
Triangular glass block that disperses light.
Showed white light is a mixture.
Coloured lights changing how costumes look.
22.
Wavelength of colours (nm). What is the total of all the values?
Dr Dabour Hub Academy - figure 7
2969
3631
700
3300
23.
Convert 600 nm to m (× 10⁻⁹). Give the answer in units of 10⁻⁷ m.
6 × 10⁻⁷ m
60 × 10⁻⁷ m
600 × 10⁻⁷ m
60,000 × 10⁻⁷ m
24.
Rainbows seen per month in a town. What is the total of all the values?
Dr Dabour Hub Academy - figure 8
22
25
19
6
25.
Which statement is correct?
Colours travel at different speeds in a vacuum.
Red light bends most.
A rectangular block splits white light visibly.
Newton showed a second prism can recombine the colours.
26.
Rainbows seen per month in a town. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 9
A
B
C
D
27.
Amount of bending of colours in a prism (°). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 10
A
B
C
D
28.
Which term matches this definition? “Order of spectrum colours.”
Stage lighting
ROYGBIV
Sensor
Dispersion
29.
Which statement is correct?
White light is a single colour.
Red light bends most.
Red light is bent the least.
The spectrum has three colours.
30.
Which term matches this definition? “Spectrum made by raindrops dispersing sunlight.”
Photon
Pigment
Filter
Rainbow
31.
Rainbows seen per month in a town. Which has the greatest value?
Dr Dabour Hub Academy - figure 11
May
Mar
Jul
Jan
32.
Width of spectrum on a screen at distances. At what value of "Distance from prism (cm)" is "Spectrum width (cm)" greatest?
Dr Dabour Hub Academy - figure 12
10
50
30
20
33.
Convert 400 nm to m (× 10⁻⁹). Give the answer in units of 10⁻⁷ m.
40,000 × 10⁻⁷ m
40 × 10⁻⁷ m
400 × 10⁻⁷ m
4 × 10⁻⁷ m
34.
Which colour is refracted the most by a prism?
Green
Yellow
Red
Violet
35.
Rainbows seen per month in a town. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 13
A
B
C
D
36.
Which is the correct definition of “Dispersion”?
Band of colours: red, orange, yellow, green, blue, indigo, violet.
Adjustable opening in a camera.
Observations supporting or rejecting ideas.
Splitting white light into colours.
37.
Which is the correct definition of “Rainbow”?
Green + blue light.
Hole letting light into the eye.
Focuses light onto the retina.
Spectrum made by raindrops dispersing sunlight.
38.
Wavelength of colours (nm). Which has the smallest value?
Dr Dabour Hub Academy - figure 14
Orange
Yellow
Violet
Red
39.
3 of 25 rainbows were double rainbows. Percentage?
22%
88%
120%
12%
40.
Width of spectrum on a screen at distances. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 15
A
B
C
D
41.
A normal bulb looks white but white light is a ____.
black
single colour
mixture
invisible
42.
Red light is slowed the ____ in glass.
most
least
same
never
43.
A spinning colour wheel looks ____.
black
white
red
blue
44.
True or false? The spectrum has seven named colours.
True
False
45.
True or false? Rainbows need the Sun in front of you.
True
False
46.
True or false? A prism splits white light into colours.
True
False
47.
True or false? Colours travel at different speeds in a vacuum.
True
False
48.
True or false? Diamonds show colour flashes due to dispersion.
True
False
49.
True or false? To see a rainbow the Sun must be behind you.
True
False
50.
True or false? Newton showed a second prism can recombine the colours.
True
False
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Part of Chapter 7: Light — see every lesson and quiz in this unit.
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