Physics

Which of the following types of energy can be transferred from one place to another?

• heat energy

• sound energy

• light energy

• Solar energy

Which one of the following instruments is used to measure humidity?

• hygrometer

• anemometer

• ammeter

• barometer

Who invented the telescope?

• Galileo Galileo

• Isaac Newton

• Hans Lippershey

• Robert Einstein

Particles that decay by spontaneously emitting charged particles and energy are said to be ….

• half life

• radioactive

• decaying

• all of the above

Which of these processes describes a nuclear fusion reaction?

• A nucleus splits to produce energy and lighter nuclei

• A nucleus absorbs energy to produce lighter nuclei

• Two nuclei bind together to produce energy and heavier nuclei.

• Two nuclei bind together to produce energy and a lighter nuclei.

Measured in decibel(db.), sound is considered hazardous noise pollution above what level?

• 90 db

• 80 db

• 50 db

• 30 db

Which one among the following represents the smallest temperature?

• 1° on the Fahrenheit scale

• 1° on the Reaumur scale

• 1° on the Celsius scale

• 1° on the Kelvin scale

Which statement explains why rubbing your hands together produce warmth.

• This action produces mechanical energy

• This is an example of mechanical energy.

• This action produces thermal energy through friction.

• This action captures thermal energy from the environment.

A 100 kg skydiver is free falling at a constant velocity of 19 m/s. What is the net force acting on him?

• 0 N

• 4.21 N

• 89.8N

• 950N

Assuming M1 and M2 in the diagram are at rest, which side of the string has more tension?

• There is more tension on the side by M2

• There is more tension on the side by M1

• The tension on both sides is the same

• Non of the above