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Phys Sci Review
Test Description: Content review
Instructions: Answer all questions to get your test result.
1) Atoms consist of 3 particles. What are they and where are they found?
A
protons & neutrons in the nucleus; electrons in the electron cloud
B
protons, neutrons, and electrons in the nucleus
C
protons & neutrons in the electron cloud; electrons in the nucleus
D
protons & electrons in the nucleus
2) Photosynthesis is a chemical reaction that occurs in
A
plants
B
air
C
animals
D
chemicals
3) Why are xrays dangerous?
A
they can build up in the liver
B
they can cause inflammation
C
they have no effect on the body
D
they can damage DNA
4) An alloy is a
A
mixture
B
suspension
C
compound
D
element
5) As heat rises, the distance between atoms increases causing them to break free of each other. This is called
A
condensation
B
sublimation
C
vaporization
D
mixture
6) The equation for the velocity of a wave is v=frequency x wavelength. What equation is used to solve for frequency?
A
velocity x wavelength
B
velocity/wavelength
C
velocity x frequency
D
velocity x velocity
7) The electromagnetic wave with the longest wavelength is
A
x rays
B
gamma rays
C
infrared waves
D
radio waves
8) A chemical change occurs when
A
a substance is broken
B
a substance is dissolved in solution
C
bonds between atoms break
D
a substance changes state
9) What formula represents sodium chloride?
A
KCL
B
CO2
C
H20
D
NaCl
10) The force that exists between objects with mass is called
A
gravity
B
magnetic force
C
electromagnetic force
D
magnetism
*select an answer for all questions
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