Science – Unit 2
description
Transcript of Science – Unit 2
![Page 1: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/1.jpg)
Science – Unit 2
Unit 2 – EnergyWeek 2
November 15-19, 2010
![Page 2: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/2.jpg)
How high or low a sound is.
pitch
![Page 3: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/3.jpg)
To quickly move back and forth.
vibration
![Page 4: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/4.jpg)
The loudness or softness of a sound.
volume
![Page 5: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/5.jpg)
A sound bouncing back from an object.
echo
![Page 6: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/6.jpg)
To take in.
absorption
![Page 7: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/7.jpg)
To bounce back.
reflection
![Page 8: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/8.jpg)
If an object vibrates slowly, it will make a __________ sound.
low
![Page 9: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/9.jpg)
Sound travels through __________.
matter
![Page 10: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/10.jpg)
Which of the following sounds could cause possible eardrum damage?•Singing birds•Jet plane taking off•Window air conditioner
jet plane taking off
![Page 11: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/11.jpg)
Sound waves travel slowest through which form of matter?•Solid•Liquid•Mud•Gas
gas
![Page 12: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/12.jpg)
Sound is another kind of __________.
energy
![Page 13: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/13.jpg)
Sound waves travel fastest through which form of matter?•Solid•Liquid•Gas•Balloons
solid
![Page 14: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/14.jpg)
Which sound takes more energy to produce?•Soft Sound•Happy Sound•Sad Sound•Loud Sound
loud sound
![Page 15: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/15.jpg)
Which is not a way that sounds help wild animals stay alive?•To keep warm•To find food•To warn one another of danger
to keep warm
![Page 16: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/16.jpg)
Which of the following loud sounds can keep you safe?•Jackhammer•Loud music•Siren on an ambulance•Birds singing
siren on an ambulance
![Page 17: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/17.jpg)
Dark-colored or dull objects absorb a lot of light which causes these objects to become __________.
warmer
![Page 18: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/18.jpg)
Name two animals that use echoes to find food.
bats and dolphins
![Page 19: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/19.jpg)
If you were going for a walk in the desert, would you rather wear black or white clothing? Why?
White because it reflects light.
![Page 20: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/20.jpg)
The ability to cause change.
Energy
![Page 21: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/21.jpg)
Heat that is produced in an engine but is not used for any purpose.
waste heat
![Page 22: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/22.jpg)
Electricity moves from a battery through wires to a bulb, and then back to the battery in a __________.
circuit
![Page 23: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/23.jpg)
When a bell makes the air __________, sound is produced.
vibrate
![Page 24: Science – Unit 2](https://reader036.fdocuments.in/reader036/viewer/2022062315/568165ba550346895dd8b6e4/html5/thumbnails/24.jpg)
The energy of motion.
kinetic energy