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Course: HIA International — Grade 7
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HIA International — Grade 7

Unit 1: Breathing and respiration

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Unit 2: Dissolving, solubility and chromatography

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Unit 3: Forces, motion and pressure

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Unit 4: Ecosystems

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Unit 5: Atoms, purity and climate

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Unit 6: Light and objects in space

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Unit 7: Nutrition, health and movement

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Unit 8: Energy changes and reactions of metals

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Unit 9: Magnetism and electromagnets

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Quiz

Investigating electromagnets – Quiz

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Investigating electromagnets HIA Science quiz: free practice for HIA International. Work through this Investigating electromagnets HIA Science quiz and get instant feedback on every answer. If you get stuck, review the 18.4 Investigating electromagnets – Notes lesson. More practice: HIA International — all units. Syllabus: Cambridge Lower Secondary programme.

  • Questions count: 50
  • Passing grade: A-
  • Time limit:
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1.
Which statement correctly describes independent variable?
the variable you measure in an investigation
the component used to change the current in the circuit
the variable you deliberately change in an investigation
a reading that does not fit the pattern of the others
2.
Which statement correctly describes dependent variable?
a reading that does not fit the pattern of the others
the variable you measure in an investigation
the average of the repeat readings
a variable kept the same so the test is fair
3.
Which statement correctly describes control variable?
the average of the repeat readings
the component used to change the current in the circuit
a variable kept the same so the test is fair
the variable you measure in an investigation
4.
Which statement correctly describes repeat reading?
the variable you measure in an investigation
a measurement taken again under the same conditions to check reliability
a variable kept the same so the test is fair
a reading that does not fit the pattern of the others
5.
Which statement correctly describes anomalous result?
the variable you measure in an investigation
the average of the repeat readings
a reading that does not fit the pattern of the others
the component used to change the current in the circuit
6.
Which statement correctly describes mean?
the average of the repeat readings
a reading that does not fit the pattern of the others
the variable you measure in an investigation
a variable kept the same so the test is fair
7.
Which statement correctly describes variable resistor?
a reading that does not fit the pattern of the others
the variable you measure in an investigation
the variable you deliberately change in an investigation
the component used to change the current in the circuit
8.
A student investigates how the number of coil turns affects electromagnet strength by counting lifted paper clips. Which variable should be kept constant?
The current in the coil
The number of coil turns
The number of paper clips lifted
The measured electromagnet strength
9.
Which term is described as: the variable you deliberately change in an investigation?
independent variable
dependent variable
control variable
anomalous result
10.
Match the term to its correct meaning: independent variable
the variable you deliberately change in an investigation
the average of the repeat readings
a measurement taken again under the same conditions to check reliability
the variable you measure in an investigation
11.
Which term is described as: the variable you measure in an investigation?
dependent variable
mean
anomalous result
independent variable
12.
Match the term to its correct meaning: dependent variable
the average of the repeat readings
the variable you measure in an investigation
the component used to change the current in the circuit
the variable you deliberately change in an investigation
13.
Which term is described as: a variable kept the same so the test is fair?
control variable
dependent variable
repeat reading
independent variable
14.
Match the term to its correct meaning: control variable
the variable you deliberately change in an investigation
a variable kept the same so the test is fair
a measurement taken again under the same conditions to check reliability
a reading that does not fit the pattern of the others
15.
Which term is described as: a measurement taken again under the same conditions to check reliability?
control variable
independent variable
repeat reading
anomalous result
16.
Match the term to its correct meaning: repeat reading
a reading that does not fit the pattern of the others
the component used to change the current in the circuit
the variable you deliberately change in an investigation
a measurement taken again under the same conditions to check reliability
17.
Which term is described as: a reading that does not fit the pattern of the others?
control variable
anomalous result
repeat reading
independent variable
18.
Match the term to its correct meaning: anomalous result
a measurement taken again under the same conditions to check reliability
a reading that does not fit the pattern of the others
a variable kept the same so the test is fair
the average of the repeat readings
19.
Which term is described as: the average of the repeat readings?
anomalous result
repeat reading
mean
variable resistor
20.
Match the term to its correct meaning: mean
the variable you deliberately change in an investigation
the component used to change the current in the circuit
the variable you measure in an investigation
the average of the repeat readings
21.
Which term is described as: the component used to change the current in the circuit?
dependent variable
variable resistor
repeat reading
control variable
22.
Match the term to its correct meaning: variable resistor
a reading that does not fit the pattern of the others
the variable you deliberately change in an investigation
the component used to change the current in the circuit
a variable kept the same so the test is fair
23.
The variable you deliberately change is the _____ variable.
control
anomalous
dependent
independent
24.
The variable you measure is the _____ variable.
independent
fixed
dependent
control
25.
Variables kept the same to make a test fair are _____ variables.
independent
random
dependent
control
26.
A reading that does not fit the pattern is called _____.
repeated
accurate
anomalous
reliable
27.
The average of the repeat readings is the _____.
range
median
total
mean
28.
The current is changed using a variable _____.
ammeter
magnet
resistor
switch
29.
The variable you deliberately change is the independent variable. - True or false?
True
False
30.
The variable you deliberately change is the dependent variable. - True or false?
True
False
31.
The variable you measure is the dependent variable. - True or false?
True
False
32.
The variable you measure is the control variable. - True or false?
True
False
33.
Control variables are kept the same to make the test fair. - True or false?
True
False
34.
Control variables are changed each time to make the test fair. - True or false?
True
False
35.
Counting how many paper clips the electromagnet holds is a way of measuring its strength. - True or false?
True
False
36.
Counting paper clips measures the current in the circuit. - True or false?
True
False
37.
When investigating the number of turns, the current must be kept the same. - True or false?
True
False
38.
When investigating the number of turns, the current should be changed too. - True or false?
True
False
39.
Repeat readings are taken to check that the results are reliable. - True or false?
True
False
40.
Repeat readings are taken to make the experiment finish faster. - True or false?
True
False
41.
A result that does not fit the pattern is called an anomalous result. - True or false?
True
False
42.
A result that does not fit the pattern is called a control result. - True or false?
True
False
43.
An anomalous result should be left out when calculating the mean. - True or false?
True
False
44.
An anomalous result should always be included in the mean. - True or false?
True
False
45.
A variable resistor is used to change the current in the circuit. - True or false?
True
False
46.
A variable resistor is used to change the number of turns. - True or false?
True
False
47.
A graph of strength against number of turns shows the pattern in the results. - True or false?
True
False
48.
A graph cannot show any pattern in these results. - True or false?
True
False
49.
The circuit should be switched off between readings so the coil does not overheat. - True or false?
True
False
50.
The circuit should be left on the whole time so the coil stays hot. - True or false?
True
False
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Part of Unit 9: Magnetism and electromagnets — see every lesson and quiz in this unit.
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