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IGCSEPhysicsCambridge (CIE)Flashcards1. Motion, Forces & EnergyPhysical Quantities & Measurement Techniques

Physical Quantities & Measurement Techniques (Cambridge (CIE) IGCSE Physics)

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    What is a ruler?

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Cards in this collection (30)

  • What is a ruler?

    A ruler is a device used to measure small distances of a few centimetres.

  • True or False?

    Rulers measure to the nearest millimetre.

    True.

    Rulers measure to the nearest millimetre.

  • What is the purpose of a tape measure?

    A tape measure is appropriate for measuring distances of a few metres.

  • Which device can be used to measure distances of up to a kilometre?

    A trundle wheel is used to measure large distances up to a kilometre.

  • What is a measuring cylinder?

    A measuring cylinder is a device used to measure the volume of liquids.

  • What device can be used to measure time intervals?

    A stopwatch can be used to measure time intervals.

  • Define the term reaction time.

    Reaction time is how long it takes someone to react to an event.

  • True or False?

    Human reaction time has more of an impact on short-time measurements than long-time measurements.

    True.

    Human reaction time has more of an impact on short-time measurements than long-time measurements.

  • State the equation for calculating an average.

    The equation for calculating an average is average space equals space fraction numerator total space value over denominator number space of space values end fraction

  • What is the purpose of taking multiple readings in Physics?

    The purpose of taking multiple readings in Physics is to obtain an accurate measurement value.

  • Define a scalar quantity. (Extended Tier Only)

    A scalar quantity is a quantity that has only magnitude.

  • What is a vector quantity? (Extended Tier Only)

    A vector quantity is a quantity that has both magnitude and direction.

  • What is displacement? (Extended Tier Only)

    The distance from a starting point.

  • True or False?

    Mass is a scalar quantity. (Extended Tier Only)

    True.

    Mass is a scalar quantity as it has only magnitude.

  • True or False?

    Distance is a scalar quantity. (Extended Tier Only)

    True.

    Distance is a scalar quantity.

  • How can you determine whether a quantity is a scalar or vector? (Extended Tier Only)

    Determine if it has only magnitude (scalar) or magnitude and direction (vector).

  • Is 100 km due north a scalar or a vector quantity? (Extended Tier Only)

    100 km due north is a vector quantity because it includes both a magnitude and a direction.

  • True or False?

    Energy is a scalar. (Extended Tier Only)

    True

    Energy is a scalar.

  • Is temperature a scalar or a vector? (Extended Tier Only)

    Temperature is a scalar.

  • Is electric field strength a scalar or a vector? (Extended Tier Only)

    Electric field strength is a vector.

  • How are vectors represented? (Extended Tier Only)

    Vectors are represented by an arrow where the arrowhead indicates direction and the length represents magnitude.

  • Define component vectors. (Extended Tier Only)

    Component vectors are parts of a vector that act in specific directions, often indicated by subscripts.

  • State the equation to calculate the resultant vector using Pythagoras' Theorem. (Extended Tier Only)

    c squared space equals space b squared space plus space a squared

    Where:

    • c = longest side length of a right-angled triangle, measured depending on the quantity it represents

    • b = one of the side lengths of a right-angled triangle, measured depending on the quantity it represents

    • a = the other side length of a right angles triangle, measured depending on the quantity it represents

  • What is the SOH-CAH-TOA mnemonic used for in trigonometry? (Extended Tier Only)

    The SOH-CAH-TOA mnemonic in trigonometry is used to remember how to apply sine and cosine to resolve the sides of a triangle when calculating vectors.

  • How can you find the angle of the resultant vector? (Extended Tier Only)

    Trigonometry can be used to find the angle of the resultant vector.

  • How can vectors be calculated graphically? (Extended Tier Only)

    Vectors can be calculated graphically by carefully producing a scale drawing with all lengths and angles correct using a pencil, ruler and protractor.

  • Which theorem is essential for calculating the magnitude of vectors at right angles to each other? (Extended Tier Only)

    Pythagoras' theorem is essential for calculating the magnitude of vectors at right angles to each other.

  • Define resultant vector. (Extended Tier Only)

    A resultant vector is a single vector with the same effect as two or more vectors combined.

  • True or False?

    The graphical calculation method of resolving vectors requires an exact scale. (Extended Tier Only)

    False.

    The graphical method doesn't require an exact scale.

  • What does the length of the vector arrow represent? (Extended Tier Only)

    The length of the arrow represents the magnitude of the vector.

Next:Motion

    1. Topic 1

      Physical Quantities & Measurement Techniques

    2. Topic 2

      Motion

    3. Topic 3

      Mass, Weight & Density

    4. Topic 4

      Effects of Forces

    5. Topic 5

      Moments

    6. Topic 6

      Momentum

    7. Topic 7

      Energy, Work & Power

    8. Topic 8

      Energy Sources

    9. Topic 9

      Pressure

    1. Topic 1

      Kinetic Particle Model of Matter

    2. Topic 2

      Thermal Properties & Temperature

    3. Topic 3

      Transfer of Thermal Energy

    1. Topic 1

      General Properties of Waves

    2. Topic 2

      Light

    3. Topic 3

      Electromagnetic Spectrum

    4. Topic 4

      Sound

    1. Topic 1

      Simple Phenomena of Magnetism

    2. Topic 2

      Electrical Quantities

    3. Topic 3

      Electric Circuits & Electrical Safety

    4. Topic 4

      Electromagnetic Effects

    1. Topic 1

      The Nuclear Model of the Atom

    2. Topic 2

      Radioactivity

    1. Topic 1

      Earth & The Solar System

    2. Topic 2

      Stars & The Universe