SCIENCE FORM 3 CHAPTER 6.1-6.3

The diagram shows two energy sources M & N.

What are the types of energy sources for M & N?

• M - Non renewable

  N - Non renewable

• M - Non renewable

  N - Renewable

• M - Renewable

  N - Non renewable

• M - Renewable

  N - Renewable

Which of the following generators does not use a turbine to produce electricity?

• Nuclear generator

• Diesel generator

• Hydroelectric generator

• Thermal generator

Which sequence of energy changes in the nuclear power station is correct?

• Nuclear E. >>>Kinetic E. >>>Heat E. >>>Electrical E

• Heat E. >>>Kinetic E. >>>Nuclear E. >>>Electrical E.

• Nuclear E. >>>Heat E. >>>Kinetic E. >>>Electrical E.

• Chemical E. >>>Heat E. >>>Nuclear E. >>>Kinetic E. >>>Electrical E.

What is the function of transformer?

• Produce electrical energy

• Change alternating current to direct current

• Control amount of current flowing in a circuit

• Step down or step up voltage of an alternating current

Which renewable energy sources that can be found in Malaysia?

I. Biomass

II. Water

III. Nuclear energy

IV. Geothermal energy

• I and II

• I and III

• II and III

• II and IV

What is the energy change involved in the power station?

• Kinetic E. >>>Chemical E. >>> Electrical E.

• Chemical E. >>>Potential E. >>>Electrical E.

• Potential E. >>>Kinetic E. >>>Electrical E.

• Electrical E. >>>Potential E. >>>Kinetic E.

Calculate the output voltage produced by the transformer?

• 2.5V

• 80V

• 480V

• 1440V

Which of the following is step down transformer?

• A

• B

• C

• D

Abu is conducting an activity to generate electricity by using the apparatus as shown in the diagram below.

What should be done by Abu to produce electric current?

I. Moves the copper rod

II. Moves the magnet

III. Moves the galvanometer

IV. Replaces the copper rod with a wooden ruler

• I and II

• II and III

• I and IV

• II and IV

Which of the following is true about the direct current.

• Generated in the power stations

• Flows in two direction

• Its voltage can be increased & decreased

• Produced by solar cell