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Course: Alhussan Physics — Stage 7
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Alhussan Physics — Stage 7

Chapter 1: Energy

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Chapter 2: Forces

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Chapter 3: Sound

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Chapter 4: Electricity

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Chapter 5: The Earth in Space

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Quiz

Physics Stage 7 Comprehensive Review — Quiz

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  • Questions count: 50
  • Passing grade: B+
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1.
True or false? Ammeters go in parallel.
True
False
2.
True or false? Air resistance falls with speed.
True
False
3.
GPE = m × g × ____.
t
a
h
v
4.
Echo after 3 s in air. Distance?
5100 m
510 m
1020 m
113 m
5.
Input 100 J, useful 40 J. Efficiency?
250%
400%
40%
60%
6.
Houses are wired in ____.
knots
loops
series
parallel
7.
Which term matches this definition? “Reflected sound.”
Lunar eclipse
Eclipse prediction
Sunspots
Echo
8.
Like charges ____.
repel
cancel
attract
stick
9.
Efficiency of light sources (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 1
A
B
C
D
10.
Speed of sound in materials (m/s). Which has the smallest value?
Dr Dabour Hub Academy - figure 2
Water
Steel
Wood
Air
11.
Which term matches this definition? “Mass × g.”
Model
Energy
Weight
Pattern
12.
Efficiency of light sources (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 3
A
B
C
D
13.
Which statement is correct?
Weight is in kg.
Ammeters go in parallel.
Houses are wired in series.
GPE = m × g × h.
14.
Efficiency of light sources (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 4
A
B
C
D
15.
Which statement is correct?
Rubbing transfers protons.
Energy can be destroyed.
Weight is in kg.
Gravity acts between any two objects with mass.
16.
True or false? Houses are wired in series.
True
False
17.
Which term matches this definition? “Charge from rubbing insulators.”
Static electricity
Pattern
Air resistance
Heliocentric model
18.
Which term matches this definition? “Drag opposing motion.”
Line graph
Axial tilt
Air resistance
Lunar phase
19.
Orbital period against distance from the Sun. Calculate the percentage change in "Period (Earth years)" from 58 to 1430.
Dr Dabour Hub Academy - figure 5
12,192%
99%
12,292%
−12,192%
20.
True or false? Gravity is noticeable only when one mass is very large.
True
False
21.
True or false? In a vacuum, a small and a large leaf fall together.
True
False
22.
Which statement is NOT correct?
The Sun orbits Earth daily.
Copernicus put the Sun at the centre.
Current is measured in amps.
Sound cannot travel through a vacuum.
23.
Which statement is NOT correct?
Ammeters are connected in series.
Houses are wired in series.
Echo distance = speed × time ÷ 2.
Houses are wired in parallel.
24.
Orbital period against distance from the Sun. At what value of "Distance (million km)" is "Period (Earth years)" smallest?
Dr Dabour Hub Academy - figure 6
228
58
150
778
25.
Speed of sound in materials (m/s). What is the total of all the values?
Dr Dabour Hub Academy - figure 7
9575
11,705
10,640
5000
26.
True or false? Echo distance = speed × time ÷ 2.
True
False
27.
Which is the correct definition of “Current”?
Data point not fitting the pattern.
Flow of charge in amps.
Visible lit part of the Moon.
Push or pull in newtons.
28.
True or false? The Sun orbits Earth daily.
True
False
29.
Echo after 2 s in air. Distance?
680 m
3400 m
340 m
170 m
30.
Which term matches this definition? “Single loop.”
Line graph
Series circuit
Heliocentric
Explanation
31.
Efficiency of light sources (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 8
A
B
C
D
32.
Which statement is correct?
Echo distance = speed × time ÷ 2.
Energy can be destroyed.
Rubbing transfers protons.
The Sun orbits Earth daily.
33.
Which statement is NOT correct?
Wasted energy is usually thermal.
Energy can be destroyed.
Day and night are caused by Earth's rotation.
GPE = m × g × h.
34.
Ammeters are connected in ____.
neither
series
parallel
loops alone
35.
Efficiency of light sources (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 9
A
B
C
D
36.
Efficiency of light sources (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 10
A
B
C
D
37.
Branch currents 0.2 and 0.4 A. Total?
0.6 A
−0.2 A
0.2 A
0.1 A
38.
Input 200 J, useful 25 J. Efficiency?
12%
125%
800%
175%
39.
Efficiency of light sources (%). What is the value for CFL?
Dr Dabour Hub Academy - figure 11
33
4
8
15
40.
Which term matches this definition? “Flow of charge in amps.”
Explanation
Current
Copernicus
Astronomy
41.
True or false? Rubbing transfers protons.
True
False
42.
Efficiency of light sources (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 12
A
B
C
D
43.
Speed of a skydiver. Which statement best describes the pattern?
Dr Dabour Hub Academy - figure 13
"Speed (m/s)" increases as "Time (s)" increases
"Speed (m/s)" decreases as "Time (s)" increases
"Speed (m/s)" rises to a peak at 12, then falls
"Speed (m/s)" stays the same
44.
Speed of sound in materials (m/s). What is the value for Water?
Dr Dabour Hub Academy - figure 14
3800
1500
5000
340
45.
True or false? GPE = m × g × h.
True
False
46.
True or false? Houses are wired in parallel.
True
False
47.
True or false? Weight is in kg.
True
False
48.
True or false? Sound cannot travel through a vacuum.
True
False
49.
Efficiency of light sources (%). What is the total of all the values?
Dr Dabour Hub Academy - figure 15
53
60
33
67
50.
True or false? Day and night are caused by Earth's rotation.
True
False
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Part of Chapter 5: The Earth in Space — see every lesson and quiz in this unit.
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