CH3 Lesson 3 Review

Marion is using a gong to send a message. How could Marion make the sound travel farther?

• move the gong indoors

• ask a friend to hold the gong

• hit the gong harder

Tags

NGSS.MS-PS4-1

Mrs. Apple is on a field trip with her class and needs to have a way to call the school in case of an emergency. Which device will help her do so from a distance?

• a smartphone

• a telegraph

• a megaphone

Observe this photo of a firetruck. What problem do sirens solve?

• They alert pedestrians and vehicles to clear the way.

• They provide a soothing sound to calm people.

• They are used to communicate with other firetrucks.

• They help in navigation by providing directions.

What message does the school bell send to the students and teachers? How does it work over a distance?

• It signals the start or end of a class and works through sound waves.

• It sends a text message to students and teachers.

• It uses visual signals to communicate.

• It operates through a digital app.

How does this device use sound to help people in their everyday lives?

• By providing auditory alerts and notifications

• By displaying visual information

• By enhancing tactile feedback

• By improving battery life

When I talk to someone I communicate with them. What does COMMUNICATE mean?

• to give information about something

• an invention or machine invented for a purpose

• how far one object or place is from another

The telephone is a device I use to talk to people over long distances. What is a DEVICE?

• how far one object or place is from another

• to give information about something

• an invention or machine made for a specific purpose

I traveled a long distance to go home. What does DISTANCE mean?

• to give information about something

• how far one object or place is from another

• an invention or machine made for a specific purpose