Electricity
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Static Electricity
SubtopicStatic Electricity under Electricity for Grade 9 IB.
Preview questions (no answers)
- 1.
What happens to a neutral electroscope when a negatively charged rod is touched to its metal knob?
A.It remains neutral
B.It becomes positively charged
C.It becomes negatively charged
D.The leaves fall off
- 2.
Which property allows metals to be good conductors?
A.They have many protons
B.They have a high density
C.They have loosely bound outer electrons
D.They are very hard
- 3.
If you increase the amount of charge on two objects, what happens to the electrostatic force between them?
A.It decreases
B.It increases
C.It stays the same
D.It becomes zero
Download the worksheet for Electricity - Static Electricity to practice offline. It includes additional chapter-level practice questions.
Current, Voltage, and Resistance
SubtopicCurrent, Voltage, and Resistance under Electricity for Grade 9 IB.
Preview questions (no answers)
- 1.
If the current in a circuit is Amperes, how much charge passes a point in seconds?
A.Coulombs
B.Coulombs
C.Coulombs
D.Coulombs
- 2.
What is the symbol for an ammeter in a circuit diagram?
A.A circle with a 'V'
B.A rectangle
C.A circle with an 'A'
D.Two parallel lines
- 3.
If a circuit is 'open', what does this mean for the current flow?
A.Current flows faster
B.Current flows normally
C.No current flows
D.Current flows backwards
Download the worksheet for Electricity - Current, Voltage, and Resistance to practice offline. It includes additional chapter-level practice questions.
Series and Parallel Circuits
SubtopicSeries and Parallel Circuits under Electricity for Grade 9 IB.
Preview questions (no answers)
- 1.
How is a voltmeter connected to measure the voltage across a resistor?
A.In a series loop with the resistor
B.In parallel, across the terminals of the resistor
C.Between the battery and the switch
D.Inside the resistor itself
- 2.
Which of these is the correct symbol for an Ammeter?
A.A square with an 'I'
B.A circle with an 'A'
C.A circle with a 'C'
D.A triangle with an 'A'
- 3.
What happens to the total current in a parallel circuit when more branches are added?
A.It increases
B.It decreases
C.It stays the same
D.It drops to zero
Download the worksheet for Electricity - Series and Parallel Circuits to practice offline. It includes additional chapter-level practice questions.
Preview questions (no answers)
- 1.
What is the name of the law that relates voltage, current, and resistance?
A.Newton's Law
B.Ohm's Law
C.Pascal's Law
D.Boyle's Law
- 2.
If you have a circuit with a battery and want a current of , what size resistor should you use?
A.4.5
B.18
C.0.055
D.14
- 3.
What effect does increasing the length of a wire usually have on its electrical resistance?
A.It decreases the resistance
B.It increases the resistance
C.It has no effect on resistance
D.It makes the resistance zero
Download the worksheet for Electricity - Ohm's Law to practice offline. It includes additional chapter-level practice questions.