Light and Sound Review

What is required to make objects visible?

• Vibrations

• Shadows

• Sound

• Light

What happens when an object is placed in the path of light?

• It vibrates

• It creates a shadow

• It becomes invisible

• It produces sound

What can vibrating materials produce?

• Light

• Shadows

• Sound

• Heat

Which of the following is an example of a vibrating material producing sound?

• A glowing bulb

• A ringing bell

• A shadow on the wall

• A silent room

What is the purpose of using a signal with light and/or sound?

• To generate heat

• To communicate over a distance

• To create art

• To produce shadows

Which of the following is NOT a source of light?

• A Firefly

• A Flashlight

• A Shadow

• The Sun

What is formed when an object blocks light?

• A reflection

• A vibration

• A sound wave

• A shadow

What is an example of sound making a material vibrate?

• A flashlight turning on

• A shadow forming on the wall

• A mirror reflecting light

• A drum skin moving when hit

What is the role of light in visibility?

• It makes objects visible

• It blocks shadows

• It creates sound

• It produces vibrations

What is an example of a light-based emergency alert?

• A vibrating phone

• A flashlight signal

• A shadow on the wall

• A siren