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GCSEPhysicsOCRPhysics A (Gateway)Exam Questions3. ElectricityStatic & Charge

Static & Charge (OCR GCSE Physics A (Gateway))

Exam Questions

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Static & Charge

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Static & Charge

11 mark

Static electricity can be produced when two materials are rubbed together.

Which two types of material could cause static electricity to be produced?

  • Two insulators

  • Two conductors

  • One insulator and one conductor

  • A metal and a non-metal

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21 mark

What conditions are needed for charge to flow?

  • A source of potential difference and two lamps.

  • A complete circuit and two lamps.

  • A complete circuit and a source of potential difference.

  • A complete circuit and a source of resistance.

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3
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Which of the following pairs of charges shows the correct electric force between them?

  • Two positive charges with arrows pointing toward each other
  • A positive and negative charge with arrows pointing toward each other
  • Two negative charges with arrows pointing toward each other
  • A positive and negative charge with arrows pointing away from each other

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41 mark

A student sets up four electrical circuits.

q5-paper1-oct-nov2020-ocr-gcse-physics

Identify in which circuit the lamp will light up.

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    51 mark

    Calculate the charge flow when a current of 20 mA flows for 2000 s.

    Use the equation: charge flow = current × time

    • 40 C

    • 100 C

    • 40 000 C

    • 100 000 C

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    6
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    Which of the following statements correctly explains the phenomenon of static electricity?

    • The object that loses protons is left with a net negative charge, and the object that gains protons is left with a net positive charge.

    • The object that loses protons is left with a net positive charge, and the object that gains protons is left with a net negative charge.

    • The object that loses electrons is left with a net negative charge, and the object that gains electrons is left with a net positive charge.

    • The object that loses electrons is left with a net positive charge, and the object that gains electrons is left with a net negative charge.

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    7
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    Which of the following atom compositions is correct for a neutral atom?

    • 5 protons, 4 neutrons, 5 electrons

    • 4 protons, 4 neutrons, 5 electrons

    • 5 protons, 5 neutrons, 4 electrons

    • 4 protons, 5 neutrons, 5 electrons

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    8
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    The diagram shows a simple circuit with two lamps. Ammeter A2 is placed between the lamps. What is the correct reading for ammeter A2?

    Simple electric circuit with a cell, two light bulbs, an ammeter labelled A2, and a current of 0.6 A shown on the left side.

    • 0.2 A

    • 0.3 A

    • 0.4 A

    • 0.6 A

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    91 mark

    The current in a wire is I with a charge flow of Q. When the current is increased to 1.5 I, what is the charge flow of the new current?

    Use the equation: charge space flow space equals space current space cross times space time

    • 0.5 Q

    • Q

    • 1.5 Q

    • 2 Q

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    10
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    In which of the following circuits will both lamps be illuminated?

    • Electric circuit diagram with an open switch, cell, resistor, and two lamps in parallel configuration. The cell is positioned in the middle of the horizontal upper wire. Moving anti-clockwise, the switch is positioned before the junction, two lamps are then positioned in parallel, the branches then rejoin at a junction, the resistor is positioned after the junction before the wire returns to the cell.
    • Electrical circuit diagram with two lamps, a cell, a resistor, and an open switch. The cell is positioned in the middle of the horizontal upper wire. Moving anti-clockwise, the lamp is positioned before the junction, the switch and a second lamp are then positioned in parallel, the branches then rejoin at a junction, and the resistor is positioned after the junction before the wire returns to the cell.
    • Diagram of a circuit with a resistor, an open switch, a cell and two lamps. The cell is positioned in the middle of the horizontal upper wire. The switch is positioned at the centre of the top horizontal wire. Moving anti-clockwise, the resistor is positioned before the junction, the cell and a lamp are then positioned in parallel, the branches then rejoin at a junction, the second lamp is positioned after the junction before wire returns to the switch.
    • Circuit diagram with an ammeter, a variable resistor, two lamps in parallel, and a fixed resistor. The variable resistor is positioned in the centre of the top horizontal wire. The cell is positioned in the middle of the horizontal upper wire. Moving anti-clockwise, the ammeter is positioned before the junction, two lamps are then positioned in parallel, the branches then rejoin at a junction, the resistor is positioned after the junction before wire returns to the variable resistor.

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