Year 10 in England

9th grade electricity and magnetism

3 9th grade electricity and magnetism skills, each with a worked example, free practice that checks every answer, and a printable worksheet. Start with a mixed review, or jump to the skill you need.

Mixed review

Ten questions drawn from every skill below.

Print a review worksheet Riddle puzzle on screen Bingo

Electrical power, charge and energy

CCSS NGSS.HS-PS3-1CCSS NGSS.HS-PS3-3England: KS4 Combined Science: Electricity

Example

An appliance on US mains (120 V) draws a current of 4 A. What is its power, in W?

P = 4 × 120 = 480
So the answer is: 480 W

Answer: 480 W

Builds on: Current, voltage and resistance (V = IR)

Leads to: Power and energy in circuits (P = I²R, E = QV)

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Charge, current and time (Q = I t)

CCSS NGSS.HS-PS3-1England: GCSE Combined Science: Electricity

Example

A current of 1.5 A flows for 120 s. How much charge flows, in coulombs (C)?

1.5 × 120 = 180
So the answer is: 180 C

Answer: 180 C

Builds on: Current, voltage and resistance (V = IR)

Leads to: Power and energy in circuits (P = I²R, E = QV)

Print a worksheet ✏️ Write on screen Flashcards

Mains electricity, AC/DC and plug safety

CCSS NGSS.HS-PS3-3England: GCSE Combined Science: Electricity (domestic uses and safety)

Example

In a UK three-pin plug, which wire is this: completes the circuit at about 0 V?

The neutral wire (blue) completes the circuit and is at about 0 V.
So the answer is: neutral wire

Answer: neutral wire

Builds on: Current, voltage and resistance (V = IR)

Print a worksheet ✏️ Write on screen Flashcards

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