What is potential energy?
a. the energy of motion
b. stored energy
c. atomic energy
b. stored energy
All matter is made up of VERY SMALL particles called _____________________
atoms
Metal, Non-Metal, or Metalloid?
Silicon is shiny, not malleable, and can conduct electricity under certain conditions. What is silicon?
Metalloid
What is kinetic energy?
a. the energy of motion
b. stored energy
c. heat energy
a. the energy of motion
_____________ is a pure substance that is made up of only one type of atom.
element
Sally is conducting an experiment and needs an object that is a good conductor of electricity. Which of the following is a good fit for Sally's experiment?
Metal, Non-Metal, or Metalloid?
Metal
Who has more potential energy, a skier on top of a hill or a skier half way down the hill?
a. The skier on top of the hill.
b. The skier half way down the hill.
c. They both have the same potential energy. d. Neither one has potential energy.
a. The skier on top of the hill.
_______________ is a substance made up of two or more elements.
Compound
What does the term
malleable mean?
able to be hammered or pressed permanently out of shape without breaking or cracking.
A moving object always has
a. potential energy
b. kinetic energy
b. kinetic energy
_________________ contains a variety of elements and compounds that are not chemically combined with each other.
Mixture
Define Brittle
break or shatter easily.
If an object is not moving, it has
a. potential energy
b. kinetic energy
a. potential energy
How many elements are in the compound H3PO4 ?
How many atoms are in H3PO4?
Elements: 3
Atoms: 8
Semi-conductors have
properties of both metals
and nonmetals. Which are
two examples of
metalloids?
A. Ge and Si
B. C and Si
C. O and Ge
D. Al and Si
A. Ge and Si