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About today's quiz

Physics — Beginner

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  • •Read every question carefully before answering. Some questions include subtle wording that changes the correct answer.
  • •Take your time on the first question. There is no time limit, but your total time is tracked for your statistics.
  • •After each answer, read the explanation. Even correct answers often include useful context you might not know.
  • •Come back tomorrow for a brand new quiz on the same topic. Daily practice is the most effective way to retain what you learn.
BeginnerScience
Today's questions

Today's quiz questions

These are the questions that make up today's quiz. Test your knowledge, see how much you know, and learn from the explanation behind every answer.

  1. 1.What happens when you rub a balloon on your hair?

    • •Static electricity is created
    • •The balloon gets heavier
    • •The balloon becomes magnetic
    • •Nothing happens

  2. 2.What is Newton's first law of motion?

    • •Every action has an equal and opposite reaction
    • •Force equals mass times acceleration
    • •Energy cannot be created or destroyed
    • •An object stays at rest or in uniform motion unless acted on by an external force

  3. 3.What is the SI unit of force?

    • •Watt
    • •Pascal
    • •Joule
    • •Newton

  4. 4.What is a vacuum?

    • •A space filled with invisible gas
    • •The area just beyond Earth's atmosphere where gravity ends
    • •A region of extremely high pressure
    • •A space entirely devoid of matter (no air or other particles)

  5. 5.Which state of matter has a definite shape and definite volume?

    • •Gas
    • •Plasma
    • •Solid
    • •Liquid

  6. 6.What instrument measures atmospheric pressure?

    • •Barometer
    • •Hygrometer
    • •Anemometer
    • •Thermometer

  7. 7.At what temperature does water boil at sea level?

    • •120°C (248°F)
    • •50°C (122°F)
    • •90°C (194°F)
    • •100°C (212°F)

  8. 8.What is the freezing point of water at standard pressure?

    • •−5°C (23°F)
    • •−10°C (14°F)
    • •10°C (50°F)
    • •0°C (32°F)

  9. 9.What type of energy does a moving car have?

    • •Kinetic energy
    • •Thermal energy
    • •Chemical energy
    • •Potential energy

  10. 10.What is the formula for calculating speed?

    • •Speed = Distance ÷ Time
    • •Speed = Distance × Time
    • •Speed = Force × Distance
    • •Speed = Time ÷ Distance