Physics Quiz For Class 8

  • Question of

    Which force is being applied by a vendor when he is pushing the pushcart?

    • Muscular force
    • Magnetic force
    • Friction
    • Electrostatic force
  • Question of

    How much weight of air is always over your head?

    • 1 kg
    • 1000 kg
    • 100 kg
    • 10 kg
  • Question of

    Which force causes a charged balloon to attract another balloon?

    • Muscular force
    • Electrostatic force
    • Magnetic force
    • Gravitational force
  • Question of

    A dropper to fill ink works because of which of the following?

    • Friction
    • Magnetic force
    • Air pressure
    • Electrostatic force
  • Question of

    The force acting on a unit area on an object

    • contact force
    • non contact force
    • pressure
    • density
    • density
  • Question of

    It is easier to cut vegetables with sharp end of knife rather than with its blunt end because

    • Smaller area provides more pressure for the applied force
    • smaller area provides less pressure for the applied force.
    • Both
    • none of the above
  • Question of

    Two tyres of a tractor are very wide and huge because

    • pressure increase when area increases
    • pressure reduces when area increases
    • Both
    • none of the above
  • Question of

    SI unit of Speed is

    • Kilometer
    • meter
    • meter/second
    • second
  • Question of

    Which of the following appliances does not use an electromagnet?

    • Electric heater
    • Electric bell
    • Bulb
    • Torch
  • Question of

    A fuse wire is made up of alloy

    • Nichrome
    • Tin-lead
    • Magnanin
    • Constantan
  • Question of

    Which of the following statements is incorrect?

    • Thermometer is read by holding its bulb.
    • A few sharp jerks are given to clinical thermometer before using it.
    • The black fabric tent is preferred during winter.
    • None of the above
  • Question of

    Which of the following conditions enables heat to flow from one body to another identical body?

    • The difference in the pressures exerted on the two bodies
    • The difference in the temperatures of the two bodies
    • The difference in the densities of the two bodies
    • The difference in the sizes of the two bodies
  • Question of

    Motion of bob of a simple pendulum shows:

    • rectilinear motion
    • periodic motion
    • circular motion
    • vibratory motion
  • Question of

    An instrument for measuring the distance travelled by a vehicle is:

    • speedometer
    • odometer
    • kilometer
    • meter/second
  • Question of

    Wind blows from/in:

    • Low pressure to high pressure area.
    • High pressure to low pressure area.
    • Any direction
    • no direction
  • Question of

    When air is heated ,its volume:

    • Decreases
    • Increases
    • Will not be affected
    • Creates high pressure
  • Question of

    Which of the following does NOT show oscillatory motion?

    • swing
    • fan
    • see-saw
    • pendulum
  • Question of

    Complete the formula : Speed =________/time .

    • mass
    • temperature
    • distance
    • direction
  • Question of

    What is the unit of measurement for speed?

    • seconds
    • seconds per meter
    • meters
    • meters per second
  • Question of

    If a person runs 100 meters in 20 seconds. What is their average speed?

    • 2 m/s
    • 5 m/s
    • 10 m/s
    • 100 m/s
  • Question of

    ______is used to measure time .

    • light gate
    • stopwatch
    • compass
    • pendulum
  • Question of

    ________ can be used to measure the time taken by an object to move between the two points.

    • stopwatch
    • light gates
    • wall clock
    • pendulum
  • Question of

    A student inserts an object into a measuring cup. If the mass of an object is 300 grams, then the mass of the object is _________.

    • 1,5 g/cm3
    • 2,5 g/cm3
    • 0,5 g/cm3
    • 2,5 g/cm3
  • Question of

    If 1 inch is equivalent to 25,4 mm, how many inches equals 1 m …

    • 0,0254 inches
    • 3,93 inches
    • 39,37 inches
    • 254 inches
  • Question of

    How can we measure pressure

    • closing the bottle
    • pressure measure
    • pressure gauge
    • None
  • Question of

    what is gas pressure

    • a force that the gas exerts on the wall of its container
    • pressure made by gas
    • pressure by volume
    • None
  • Question of

    how does heating a gas change its pressure

    • the particles will move slower
    • the particles will move faster
    • the particles will bounce on the wall of the bottle
    • None
  • Question of

    how does cooling a gas change its pressure

    • cause an increase in pressure
    • particles will move slowly
    • pressure against the air valve of the bottle
    • None
  • Question of

    how does changing the volume of a gas change its pressure

    • when a gas is squeezed into a smaller volume, the particles have less space to move
    • the gas pressure will decrease
    • fill the container
    • None
  • Question of

    What is the unit of measurement for speed?

    • seconds
    • seconds per meter
    • meters
    • meters per second

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