Ujian Tengah Semester II

Which objects that give off light?

• hairdryer that is switched on & television set that is switched on

• burning candle & television set that is switched on

• burning candle & kettle with boiling water

• hairdryer that is switched on & kettle with boiling water

Which objects that give off sound?

• hairdryer that is switched on & television set that is switched on

• burning candle & television set that is switched on

• burning candle & kettle with boiling water

• hairdryer that is switched on & kettle with boiling water

Which objects that give off heat?

• hairdryer that is switched on & television set that is switched on

• burning candle & television set that is switched on

• burning candle & kettle with boiling water

• hairdryer that is switched on & kettle with boiling water

Choose the correct sentence about the light energy from the flame.

• Light energy is destroyed.

• Energy is transferred to light energy.

• Light energy is lost.

• Light energy is made by the candle.

Object X is not a source of light.
How can we see object X? Choose the correct answer.

• it absorbs light

• it gives off light

• it reflects light

• it refracts light

Which of the following surfaces cannot show a reflection?

• mirror

• aluminium foil

• wooden board

• the back of a metal spoon

The name of this type of diagram is ….

• energy

• ray

• light

• line

An electrical .... does not allow electric current to flow easily.

• dimmer

• switch

• conductor

• insulator

Only one student is correct. Circle the name of the student who is correct.

• Jenny and Nina

• Jenny

• Nina

• Adam

This question is about energy. Tick (√) to show if these sentences are true or false.

• true

• false