Physics Quiz Answer key.pdf

Answer Key Name: ____________________________ Physics Quiz 08/30/22 Date ______________________ MOLECULE 1) When atoms bond together they form a(n) _________________ ELECTRON 2) The hydrogen atom is the simplest form of an atom will have only one _________________ and PROTON one __________________ A...

Answer Key Name: ____________________________ Physics Quiz 08/30/22 Date ______________________ MOLECULE 1) When atoms bond together they form a(n) _________________ ELECTRON 2) The hydrogen atom is the simplest form of an atom will have only one _________________ and PROTON one __________________ AIR 3) The specific gravity of gases is measured using ______________________ as the reference. HYDROMETERS 4) The specific gravity of liquids is measured using ______________________ as the reference. WORK 5) Energy is the capacity of an object or a body to perform __________________________ POTENTIAL KINETIC 6) Energy may be classified as _________________________ or _________________________ 7) If the drive gear has 100 teeth and the driven gear has 400 teeth, the driven gear will turn 50 __________________________revolutions when the drive gear turns 200 revolutions. 100/400=1/4=.25.25X200=50 Name: ____________________________ Physics Quiz Date ______________________ 8) Name the five types of stress found in mechanical bodies. TENSION BENDING a.____________________________________ b.__________________________________ COMPRESSION SHEAR c.___________________________________ d. ___________________________________ TORSION e. ____________________________________ COMPRESSION 9) In flight, the top skin of a metal wing is subjected to which stress? ____________________ 10) Find the force B required to balance this lever: A = 10 pounds b =12 inches a =6 inches 5 B _______ pound(s) SECOND 11) This is a __________________________________________ class lever Name: ____________________________ Physics Quiz Date ______________________ 12) The device used for measuring the specific gravity of liquids is known as a HYDROMETER ________________________ MATTER 13) Solid, liquid, and gas are three physical states of _______________________ POTENTIAL 14) Energy stored in a stretched spring is an example of ____________________energy. TORQUE 15) A force that tends to cause rotation about a point is called a _______________. 16) A mechanical advantage of 8 tells us that for every 1 pound of force applied we will be able to 8 move _______ pounds of resistance. FOOT POUNDS 17) In the English system of measurement, work is expressed in ___________ 18) What are the three groups of potential energy? ELASTIC a. _______________________ GRAVITATIONAL b. _______________________ CHEMICAL c. _______________________ 19) Newton's Second Law of Motion explains how an object will change velocity when acted on by F=MxA an outside force. It is commonly expressed by the formula _______________________. Magnitude 20) A vector is an expression of velocity and has both a _____________________and Direction ____________________.