Tag: science & technology

Questions Related to science & technology

  1. Gravity of the earth.

  2. Inertia of our bodies.

  3. Friction between our feet and the floor of the bus.

  4. Our lack of balance while experiencing sudden change of movement.


Correct Option: B
  1. higher than the work or energy input by the person

  2. equal to the work or energy input by the person

  3. lower than the work or energy input by the person

  4. both b & c can happen


Correct Option: C

Voltage is the force which pushes electrons through wires.

  1. True

  2. False


Correct Option: B

Two 90-decibel sound sources are turned on at the same time. Together they create a 180-decibel sound level.

  1. True

  2. False


Correct Option: B

Ben travels to a distant planet. In outerspace, with essentially no gravity, he can throw a baseball (mass = 0.5 kg) and a shot put (mass = 4 kg) at the same speed with no discernable difference in effort.

  1. True

  2. False


Correct Option: B

The force between your feet and the floor is greater while standing on your tiptoes than while standing flat on your feet.

  1. True

  2. False


Correct Option: B

Running a ceiling fan in an enclosed room during the summer will (assuming no heat transfer in or out):

  1. make the room cooler.

  2. slowly raise the room’s temperature.

  3. make no difference in temparature.

  4. it will depend on the size of the room.


Correct Option: B