sci 3rd quarter reviewer

Question 1

used for communications, radio astronomy, remote sensing, radar, and cooking

Answer 1

microwaves

Question 2

rachel has the ______ frequency

Answer 2

lowest

Question 3

when you put a wet tissue paper in a microwave, it heats up because the ______ in the tissue absorb the microwave energy?

Answer 3

water molecules

Question 4

microwaves release millions and millions of tons of ..?

Answer 4

carbon monoxide

Question 5

rachel’s wave (R W) have a ______ frequency and ______ wavelength?

Answer 5

lowest, longest

Question 6

the _______ causes the water molecules to move around and create heat, warming up the tissue paper

Answer 6

absorption

Question 7

used for fiber optic communication, photography, agriculture, theater/film

Answer 7

visible light

Question 8

a machine that creates electricity

Answer 8

generator

Question 9

television and FM and AM radio broadcasts, military communications, mobile phones, ham radio, wireless computer networks are examples of ______?

Answer 9

radio waves

Question 10

generator turns mechanical energy into ______ energy

Answer 10

electrical

Question 11

used in industrial processes and in medical and dental practices: killing bacteria, creating fluorescent effects, curing inks

Answer 11

uv light (ultraviolet light)

Question 12

used widely in cosmetics: applications such as treating skin injuries, smoothing wrinkles, reducing the occurrence of dandruff, blackheads, etc

Answer 12

infrared light

Question 13

gerjomarae (G R) have a ______ frequency and ______ wavelength?

Answer 13

highest, shortest

Question 14

exposure to high levels of ______
can cause skin burns

Answer 14

microwaves

Question 15

radiologists enter an enclosed area while taking x-rays of an individual to protect themselves from unnecessary exposure to ..?

Answer 15

radiation

Question 16

are a form of electromagnetic radiation, have higher energy and can pass through most objects, including the body

Answer 16

x-ray

Question 17

used in medicine (radiotherapy), industry (sterilization and disinfection) and the nuclear industry

Answer 17

gamma rays

Question 18

gerjom has the ______ frequency

Answer 18

highest

Question 19

generator turns ______ energy into electrical energy

Answer 19

mechanical