Light Uses

Lighthouse send a message to

• ship.

• bird.

• car.

The red light in traffic light send a message to

• go

• wait

• stop

The green light in light traffic send a message to

• go

• warning

• stop

The yellow light is used as

• warning/ to wait

• stop

• go

An ambulance use light and sound to send message to the cars

• to move over.

• to wait their turn.

Morse code could use

• light only

• sound only

• light and sound

Who invent Morse Code?

• Jack

• Samuel Morse

Morse code are used to send message over

• short distance

• long distance

Ships use Morse Code to send

• flashes of light

• sound

In which weather the ships send Morse code? Choose 2 answers

• sunny

• fog

• rainy