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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 4.6 Chapter 4 Review: Electricity — 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.
Which statement is correct?
Like charges attract.
In a series circuit current is the same everywhere.
The balloon becomes positive.
Plastic conducts.
3.
Which statement is NOT correct?
Current is a flow of charge.
The balloon is attracted to the wall.
The wall is a conductor.
Metals are conductors.
4.
Like charges ____.
stick
repel
cancel
attract
5.
80 protons and 85 electrons. Net charge?
165
5
−5
80
6.
True or false? Insulated objects can keep a charge.
True
False
7.
Fuses melt if current is too ____.
zero
steady
high
low
8.
Which term matches this definition? “Charge built up on an insulator by rubbing.”
Resistance
Medium
Static electricity
Analogy
9.
Lamp brightness with test materials. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 1
A
B
C
D
10.
2 cells of 1.5 V in series. Voltage?
3.0 V
1.3 V
1.5 V
3.5 V
11.
Which is the correct definition of “Circuit”?
What a model says will happen.
Property making objects attract or repel.
Complete loop for current to flow.
Push apart; like charges repel.
12.
Which is the correct definition of “Ampere”?
Unit of current (A).
Component that makes a sound.
Sound energy taken in by a surface.
Thin membrane that vibrates when sound arrives.
13.
True or false? The balloon becomes positive.
True
False
14.
Metals and ____ are conductors.
glass
wood
plastic
graphite
15.
Pieces of paper picked up by a rubbed comb. What is the value of "Pieces" when "Number of rubs" is 25?
Dr Dabour Hub Academy - figure 2
2
13
10
12
16.
Brightness with number of lamps in series. By how much does "Brightness (units)" change between 1 and 4?
Dr Dabour Hub Academy - figure 3
88
110
12
112
17.
True or false? The wall is a conductor.
True
False
18.
Which statement is NOT correct?
Ammeters go in parallel.
An ammeter is connected in series.
Current is a flow of charge.
1 A = 1000 mA.
19.
Which is the correct definition of “Static electricity”?
Charge built up on an insulator by rubbing.
Reflected sound.
1/1000 of an amp.
Pump as cell, water flow as current.
20.
True or false? The balloon is attracted to the wall.
True
False
21.
60 C in 30 s. Current?
0.5 A
1800.0 A
2.0 A
90.0 A
22.
Which term matches this definition? “Unit of current (A).”
Rarefaction
Ampere
Charge
Water model
23.
True or false? Houses are wired in series.
True
False
24.
True or false? Current is measured in amps.
True
False
25.
True or false? Current is used up by lamps.
True
False
26.
The balloon becomes ____.
negative
magnetic
neutral
positive
27.
Lamp brightness with test materials. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 4
A
B
C
D
28.
House circuits are in ____.
series
parallel
loops only
knots
29.
Lamp brightness with test materials. Which has the greatest value?
Dr Dabour Hub Academy - figure 5
Salt water
Graphite
Copper
Aluminium
30.
The balloon repels electrons in the wall's ____.
back
paint only
core
surface
31.
True or false? Like charges attract.
True
False
32.
Plastic is an ____.
conductor
metal
insulator
semiconductor
33.
The wall surface becomes slightly ____.
positive
neutral
negative
magnetic
34.
Normal current of appliances (A). Which has the greatest value?
Dr Dabour Hub Academy - figure 6
TV
Lamp
Hair dryer
Kettle
35.
50 protons and 45 electrons. Net charge?
5
95
50
−5
36.
Which term matches this definition? “Complete loop for current to flow.”
Insulation
Circuit
Coulomb
Double insulation
37.
Which is the correct definition of “Fuse”?
Carried by electrons in wires.
Thin wire that melts if current is too high.
Sound energy taken in by a surface.
Material that a wave travels through.
38.
Pieces of paper picked up by a rubbed comb. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 7
A
B
C
D
39.
Which statement is NOT correct?
Fuses melt if current is too high.
Current is used up by lamps.
The earth wire is green and yellow.
An open switch breaks a circuit.
40.
Pieces of paper picked up by a rubbed comb. By how much does "Pieces" change between 5 and 25?
Dr Dabour Hub Academy - figure 8
14
13
15
11
41.
Pieces of paper picked up by a rubbed comb. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 9
A
B
C
D
42.
4 cells of 1.5 V in series. Voltage?
5.5 V
6.0 V
1.5 V
2.7 V
43.
Pieces of paper picked up by a rubbed comb. Calculate the percentage change in "Pieces" from 5 to 25.
Dr Dabour Hub Academy - figure 10
650%
85%
550%
−550%
44.
With 1 lamp the current is 0.6 A; with 3 lamps it is 0.2 A. What is the percentage decrease?
67%
200%
40%
33%
45.
True or false? Parallel branch currents add up to the total.
True
False
46.
All models have ____.
colour
perfect accuracy
no use
limits
47.
Which term matches this definition? “Material that lets current flow.”
Circuit
Rope model
Conductor
Free electron
48.
Which statement is NOT correct?
Fuses melt if current is too high.
Fuses melt if current is low.
Current is measured in amps.
Rubbing a balloon transfers electrons from the jumper to the balloon.
49.
True or false? Plastic conducts.
True
False
50.
Which statement is NOT correct?
An open switch breaks a circuit.
Rubbing creates charge.
Current is a flow of charge.
Plastic is an insulator.
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Part of Chapter 4: Electricity — see every lesson and quiz in this unit.
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