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Course: HIA International — Grade 6
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Curriculum

HIA International — Grade 6

Unit 1: Cells and organisms

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Unit 2: States of matter, atoms and compounds

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Unit 3: The Solar System and energy

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Unit 4: Living organisms and classification

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Unit 5: Metals, non-metals, acids and alkalis

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Unit 6: Sound, the Earth and eclipses

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Unit 7: Microorganisms and food webs

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Unit 8: Chemical reactions

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Unit 9: Electricity and circuits

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Quiz

Flow Of Electricity – Quiz

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Flow Of Electricity HIA Science quiz set 3: free practice for HIA International. Work through this Flow Of Electricity HIA Science quiz set 3 and get instant feedback on every answer. If you get stuck, review the 9.2 Flow Of Electricity – Notes lesson. More practice: HIA International — all units. Syllabus: Cambridge Lower Secondary programme.

  • Questions count: 50
  • Passing grade: A-
  • Time limit:
Start Quiz
1.
What is an electric current?
The flow of electric charge around a circuit
The push provided by a cell
A break in a circuit
A material that stops charge flowing
2.
What is needed for a current to flow?
A complete circuit
A broken wire
An insulator in the loop
An open switch
3.
Why do metals conduct electricity?
They are shiny
They are heavy
They are magnetic
They contain free electrons that can move
4.
What is plastic used for on a wire?
To make it conduct better
To increase the current
To make it magnetic
To insulate it and keep the user safe
5.
What does a cell do in a circuit?
It measures the current
It provides the push that makes charge flow
It insulates the wires
It stops the current
6.
How does a switch turn a lamp off?
It reverses the current
It makes a gap in the circuit
It adds more cells
It uses up all the charge
7.
Which material conducts electricity best of all?
Glass
Silver
Graphite
Copper
8.
Why is copper used for wires rather than silver?
Copper is lighter than plastic
Silver does not conduct
Copper is an insulator
Copper conducts very well and is much cheaper
9.
Why are glass insulators used on electricity pylons?
Glass does not conduct, so it holds the wires apart safely
Glass conducts very well
Glass is magnetic
Glass makes the current bigger
10.
Which non-metal conducts electricity?
Graphite
Rubber
Plastic
Glass
11.
Why do electricians wear rubber gloves?
Rubber increases the current
Rubber makes wires stronger
Rubber conducts electricity away safely
Rubber is an insulator and protects them from the current
12.
In the four circuits shown, in which circuit will the lamp light?
Dr Dabour Hub Academy - figure 1
P
R
Q
S
13.
Why does the lamp in circuit R not light?
Dr Dabour Hub Academy - figure 2
The switch is open
The lamp is too bright
There is a gap in the wire
There is no cell to push the charge
14.
Which two circuits do not light because the loop is broken?
Dr Dabour Hub Academy - figure 3
R and S
Q and S
P and R
P and Q
15.
A student clips materials into the gap shown. Which material will make the lamp light?
Dr Dabour Hub Academy - figure 4
Glass
Plastic
Copper
Rubber
16.
In the material test shown, which variable must be kept the same for a fair test?
Dr Dabour Hub Academy - figure 5
The brightness observed
Whether the lamp lights
The size and shape of each material sample
The type of material
17.
A dim lamp is hard to see. How could the material test be improved?
Dr Dabour Hub Academy - figure 6
Test in a bright room
Use a lower voltage cell
Remove the lamp
Add an ammeter to measure the current
18.
Using the bar chart, which material is a conductor but not as good as copper?
Dr Dabour Hub Academy - figure 7
Silver
Plastic
Glass
Graphite
19.
Using the bar chart, how much bigger is the current with copper than with graphite?
Dr Dabour Hub Academy - figure 8
0.12 A
0.18 A
0.30 A
0.48 A
20.
In the cable diagram, what are X and Y made of?
Dr Dabour Hub Academy - figure 9
Both are copper
X is plastic (insulator); Y is copper (conductor)
X is copper; Y is plastic
Both are plastic
21.
Why is it dangerous to use a cable whose outer layer X is damaged?
Dr Dabour Hub Academy - figure 10
The cable would become magnetic
It would make the lamp brighter
The copper could touch a person and current could flow through them
The cable would stop conducting
22.
What is the fourth step in the flow chart?
Dr Dabour Hub Academy - figure 11
A cell provides the push
It returns to the cell
The current stops
Charge is used up
23.
Ammeter A1 reads 0.25 A. What does A3 read?
Dr Dabour Hub Academy - figure 12
0.25 A
0 A
0.75 A
0.50 A
24.
A student says the current is used up by the lamps, so A3 is smaller than A1. Using the diagram, which is correct?
Dr Dabour Hub Academy - figure 13
A1 is zero
The current is the same at A1, A2 and A3
A3 is smaller than A1
A2 is zero
25.
In the diagram, what happens when switch S is closed?
Dr Dabour Hub Academy - figure 14
Only L1 lights
Neither lamp lights
Only L2 lights
Both lamps light
26.
In the diagram, lamp L1 breaks. What happens to L2 when S is closed?
Dr Dabour Hub Academy - figure 15
L2 lights normally
L2 does not light
L2 gets brighter
L2 flashes
27.
The bar chart models free electrons. Which conclusion does it support?
Dr Dabour Hub Academy - figure 16
Free electrons stop current
Materials with more free electrons conduct better
Rubber conducts best
All materials conduct equally
28.
Use the table. Which materials are insulators?
Copper and silver
Silver and rubber
Plastic and rubber
Graphite and copper
29.
Use the table. Which material would be best for the contacts inside a switch?
Glass
Plastic
Rubber
Silver
30.
Use the table. Which material is brittle but conducts?
Rubber
Plastic
Graphite
Copper
31.
Use the table. Which object in the table could complete the circuit?
A rubber band
A plastic ruler
A steel paper clip
A glass rod
32.
Use the table. Which result is most likely an error?
Copper - lamp lit
Wood - lamp did not light
Plastic - lamp did not light
Aluminium - lamp did not light
33.
Use the table. What is the missing reading for ammeter A2?
0.2 A
0.4 A
0.8 A
0 A
34.
Use the table. In which circuit is the switch open?
Circuit 4
Circuit 2
Circuit 3
Circuit 1
35.
Why should you never test materials using mains electricity at school?
It gives too little current
Materials do not conduct mains
It stops lamps working
Mains voltage can give a dangerous or fatal shock
36.
Which plan best finds out which of ten objects are conductors?
Weigh each object
Look at the colour of each object
Hold each object near a magnet
Put each object in turn into a gap in a cell-lamp circuit and record whether the lamp lights
37.
Which pairing of material and use is correct?
Copper - gloves
Rubber - wires
Glass - contacts in switches
Plastic - wire covering
38.
Which pairing of material and behaviour is correct?
Rubber - conducts very well
Graphite - does not conduct
Copper - conducts very well
Glass - best conductor of all
39.
Match the term to its description: Circuit
A material that does not conduct
A complete loop that charge can flow around
The flow of charge
A source of electrical energy
40.
A material that lets charge flow easily is a _____.
conductor
insulator
cell
switch
41.
A component that opens or closes a circuit is a _____.
lamp
wire
switch
cell
42.
Metals conduct because they contain free _____.
protons
electrons
molecules
atoms
43.
Current only flows in a complete circuit. True or false?
False, it flows in any wire
True
True, but only with two cells
False
44.
Current is used up as it passes through a lamp. True or false?
True, so the current falls after each lamp
True
False
False, it increases
45.
Graphite is a non-metal that conducts electricity. True or false?
True
False
True, but only when wet
False, graphite is an insulator
46.
Insulators are used to keep people safe from the current. True or false?
True, but only in batteries
False
True
False, insulators make current flow
47.
A plastic spoon placed in the gap of a circuit will make the lamp light. True or false?
False, the lamp will explode
True
True, plastic is a good conductor
False
48.
Silver is the best conductor of all but is expensive. True or false?
False
True
False, silver is an insulator
False, copper is the best
49.
Adding a closed switch to a working circuit stops the lamp. True or false?
False
False, it makes the lamp flash
True
True, because switches block current
50.
Rubber has almost no free electrons. True or false?
False, rubber has many free electrons
True
True, but only when hot
False
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Part of Unit 9: Electricity and circuits — see every lesson and quiz in this unit.
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