1. which type of electromagnetic energy has a shorter wavelenght than ultraviolet waves?
a. visible light
b. microwaves
c. x rays
d. infrared light
2. Plastic is used to cover the copper wires in the power cords of appliances because plastic differs from copper in
a. density
b. hardness
c. phase at room temperature
d. electrical conductivity
3. which energy source is considered a NONRENEWABLE resource?
a. solar
b. wind
c. moving water
d. fossil fuel
4. A television set changes electrical energy to sound and light energy. In this process, some energy is
a. created
b. destroyed
c. changed to matter
d. changed to heat
5. The tiny particles that make up all matter are called?
a. genes
b. atoms
c. minerals
d. cells
2007-04-16 14:47:11 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
C
D
D (are you kidding)
D
B
2007-04-16 14:52:39 · answer #1 · answered by moneymonty 3 · 0⤊ 0⤋
1. c.
2. d.
3. d.
4. d.
5. b.
2007-04-16 21:55:10 · answer #2 · answered by Mr. McPerson 2 · 0⤊ 0⤋
Number 3 is fossil fuel and Number 5 is atoms. Sorry that s all i know
2007-04-16 21:50:56 · answer #3 · answered by Flippy510 2 · 0⤊ 2⤋
1. c. xrays are shortest
2. d. electrical conductivity
3 d. fossil fuel is nonrenewable
4. d. changed to heat
5. b. atoms
2007-04-16 21:53:11 · answer #4 · answered by science teacher 7 · 0⤊ 0⤋
1) c
2) d
3) d
4) d
5) b
2007-04-16 21:51:11 · answer #5 · answered by Scarlet Manuka 7 · 0⤊ 0⤋