Section A; Matter and Energy
1) ________ Anything that Occupies space and has weight.
2) When atoms bond together they form a(n) ____________.
3) A(n) ________ is the smallest particle of a chemical element.
4) The hydrogen atom is the simplest atom, having only one _______ and one ________.
5) There are ______ known elements.
6) The three physical states of matter are:
a. _____________
b. _____________
c. _____________
7) The _________ of a material is the amount of matter a body contains.
8) _________ is the force with which the gravity of the earth attracts a mass.
9) The formula for calculating the mass of an object is: Mass= _______________
10) The acceleration due to gravity is ________ feet per second, per second.
11) The _______ of a substance is its weight per unit volume.
12) Density may be expressed by the formula: Density=____________
13) The ratio of the density of a solid or liquid to the density of water is known as _________ ________.
14) Specific gravity may be expressed by the formula: Specific Gravity=___________________
15) The specific gravity of gasses is measured using _________ as the reference.
16) The device used for measuring the specific gravity of liquids is known as a ____________.
17) The specific gravity of pure water, as indicated by a hydrometer is __________
18) The specific gravity of a fully charged lead-acid battery is between ________ and ________
19) Energy is the capacity of an object or a body to preform __________
20) Energy may be classified as _________ or __________
21) Energy stored in a stretched spring is an example or ___________ energy.
22) Energy in a spinning flywheel is an example of ____________ energy.
23) One horsepower is equal to _______ watts of electrical energy, or __________ foot-pounds per minute of mechanical energy.
