4ب November Revision Quiz

....................................... energy affects the sensory receptors in the eyes, causing vision.

• Sound

• Kinetic

• Light

• Magnetic

The pupils of nocturnal animal open ................................. those of humans.

• narrower than

• similar to

• typical to

• wider than

Each of the following is considered a source of light, except the ....................................... .

• fire

• Sun

• lamp

• eye

The ................................. is a natural source of light.

• fire

• moon

• Sun

• candle

Which of the following organs are working together for seeing different objects?

• Nose and brain

• Eyes and brain

• Ears and brain

• Tongue and brain

Light travels in ....................................... lines in the air.

• curved

• straight

• circular

• zigzag

Light is a form of ....................................... .

• energy

• work

• matter

• force

Hossam wants to make a box to see its contents from the outside; which of the following materials will he use?

• Cardboard

• Transparent glass

• Opaque plastic

• Smooth mirror

When light falls on a mirror, it is ....................................... .

• reflected

• refracted

• scattered

• absorbed

In order to see things clearly, we must have a source of ............... energy.

• chemical

• light

• sound

• heat