Light
Sound
Challenge
Final Jeopardy
100
You shined a flashlight on an object, and light reflected, or bounced back. What kind of object could this be?
a. a mirror
b. a window
c. a thin piece of paper
a. a mirror
100
Why are fire alarms so loud?
a. to scare people.
b. to make sure sure people hear the alarm and get outside to safety.
c. to let firefighters hear the alarm at their station.
d. to make people's ears hurt when the firefighters arrive.
b. to make sure sure people hear the alarm and get outside to safety.
100
Why can you see yourself when you look in a mirror?
a. The mirror gives off light.
b. Light bounces off of the mirror.
c. Light passes through the mirror.
d. The mirror is a source of energy.
b. Light bounces off of the mirror.
100
Look at the picture. Use what you know about light to tell how the boy can see himself in the mirror.
Light bounces back to show his reflection.
200
Greg shines a flashlight on the wall. Greg puts his hand in front of the flashlight and sees a dark outline of his hand on the wall. What did Greg make on the wall?
a. Electricity
b. Heat
c. A shadow
d. Energy
c. A shadow
200
Fire alarms let people know that there is a fire. They make a loud noise. Fire alarms use sound energy to
a. cool off fires.
b. pour water on fires.
c. blow out a fire.
d. tell people to get away from the fire.
d. tell people to get away from the fire.
200
What kind of energy comes from a radio?
a. light
b. motion
c. sound
c. sound
300
People can use light energy to
a. feel a feather
b. smell a flower
c. look at a rock
c. look at a rock
300
Why are sounds in everyday life important?
a. They keep you warm.
b. They help you hear what is going on.
c. They help you see objects.
b. They help you hear what is going on.
300
Which of these objects can light shine through?
a. a book
b. a solid door
c. a window
d. a tree trunk
c. a window
400
Light helps us see
a. sounds near us.
b. smells coming from close by.
c. objects in the room we are in.
c. objects in the room we are in.
400
What are some devices you can use to communicate with people far away? Give two devices.
telephone, cell phone, email, telegram, morse code, mail
400
Name some things that give sounds? Give two things.
guitar, telephone, tv, piano, fire alarm, fire trucks, bell