Physics: Test 1

10 questions · 15 minutes · scoring and calculator rules shown before you begin

Start the test Practice mode

General instructions for the test
  1. The set has 10 questions. The configured time limit is 15 minutes. The timer starts after you confirm the rules.
  2. The question palette on the right of the screen shows the status of each question, using these symbols:
    • 1 You have not visited the question yet.
    • 2 You have not answered the question.
    • 3 You have answered the question.
    • 4 You have not answered the question, but have marked it for review.
    • 5 You have answered the question and marked it for review. It will be considered for evaluation.
  3. Click a question number in the palette to go to that question directly. Note that this does not save your answer to the current question.
  4. Click Save & Next to save your answer to the current question and go to the next one. Click Mark for Review & Next to save your answer, mark the question for review and go to the next one.
  5. To change your answer, select another option. To remove it, click Clear Response.
  6. For section navigation, calculator permission and scoring, use the rules shown before this particular set. They may differ between sets and from an official assessment.
  7. Scoring is shown before you begin. Unanswered questions carry no penalty. Feedback mode has no time limit or negative marking.
  8. Click Submit when you have finished. Your report then shows every answer, its solution and the time you spent on each question.

Practice mode has no clock and no negative marking; the answer and solution appear as soon as you choose an option.

Physics Test 1: questions and answers

Take the test first if you want an honest score. The answers and solutions below are folded away until you open them.

  1. 1. The SI unit of force is the
    1. watt
    2. newton
    3. joule
    4. pascal

    Reference: q-7fd2a315-28 · Report this question

    Show answer and solution

    Answer: B. newton

    Force is measured in newtons (N).
  2. 2. The SI unit of electric current is the
    1. ampere
    2. ohm
    3. coulomb
    4. volt

    Reference: q-5d37a364-39 · Report this question

    Show answer and solution

    Answer: A. ampere

    Electric current is measured in amperes (A).
  3. 3. The speed of light in vacuum is approximately
    1. 3 × 10⁵ m/s
    2. 3 × 10⁶ m/s
    3. 3 × 10¹⁰ m/s
    4. 3 × 10⁸ m/s

    Reference: q-841448c9-46 · Report this question

    Show answer and solution

    Answer: D. 3 × 10⁸ m/s

    Light travels at about 3 × 10⁸ metres per second in vacuum.
  4. 4. Which instrument is used to measure atmospheric pressure?
    1. Hygrometer
    2. Ammeter
    3. Thermometer
    4. Barometer

    Reference: q-aa2708d8-58 · Report this question

    Show answer and solution

    Answer: D. Barometer

    A barometer measures atmospheric pressure.
  5. 5. The SI unit of power is the
    1. joule
    2. volt
    3. newton
    4. watt

    Reference: q-184a85b-28 · Report this question

    Show answer and solution

    Answer: D. watt

    Power is measured in watts (W); 1 watt = 1 joule per second.
  6. 6. Which mirror is used as a rear-view mirror in vehicles?
    1. Concave mirror
    2. Convex mirror
    3. Plane mirror
    4. Cylindrical mirror

    Reference: q-a6bede15-56 · Report this question

    Show answer and solution

    Answer: B. Convex mirror

    A convex mirror gives a wider field of view, so it is used as a rear-view mirror.
  7. 7. Sound cannot travel through
    1. Vacuum
    2. Air
    3. Water
    4. Steel

    Reference: q-33014f56-28 · Report this question

    Show answer and solution

    Answer: A. Vacuum

    Sound needs a material medium, so it cannot travel through a vacuum.
  8. 8. The acceleration due to gravity near the surface of the earth is approximately
    1. 9.8 m/s²
    2. 8.9 m/s²
    3. 10.8 m/s²
    4. 6.7 m/s²

    Reference: q-103083cc-79 · Report this question

    Show answer and solution

    Answer: A. 9.8 m/s²

    The value of g near the surface of the earth is about 9.8 m/s².
  9. 9. "To every action there is an equal and opposite reaction" is
    1. The law of gravitation
    2. Newton's first law of motion
    3. Newton's second law of motion
    4. Newton's third law of motion

    Reference: q-a335fe67-61 · Report this question

    Show answer and solution

    Answer: D. Newton's third law of motion

    This is the statement of Newton's third law of motion.
  10. 10. Which lens is used to correct short-sightedness (myopia)?
    1. Concave lens
    2. Convex lens
    3. Cylindrical lens
    4. Bifocal lens

    Reference: q-11719edb-58 · Report this question

    Show answer and solution

    Answer: A. Concave lens

    Myopia is corrected with a concave (diverging) lens.

Ready to try it against the clock?

Start the test Practice mode