Degnan_MCTest_08

  1. What is the purpose of a pulley?  A.  Plant seeds  B.  Lift objects  C.  Hold pieces of wood together   2. A pulley attached in position above a load to be lifted is called a ?  A.  Compound pulley  B.  Movable Pulley <span style="FONT-FAMILY: 'Calibri','sans-serif'; mso-fareast-font-family: Calibri; mso-bidi-font-family: Calibri"> C.  <span style="FONT-FAMILY: 'Calibri','sans-serif'">Fixed Pulley <span style="FONT-FAMILY: 'Calibri','sans-serif'"> <span style="FONT-FAMILY: 'Calibri','sans-serif'; mso-fareast-font-family: Calibri; mso-bidi-font-family: Calibri"> 3. <span style="FONT-FAMILY: 'Calibri','sans-serif'">What do we gain by using simple machines? <span style="FONT-FAMILY: 'Calibri','sans-serif'; mso-fareast-font-family: Calibri; mso-bidi-font-family: Calibri"> A.  <span style="FONT-FAMILY: 'Calibri','sans-serif'">Save energy <span style="FONT-FAMILY: 'Calibri','sans-serif'; mso-fareast-font-family: Calibri; mso-bidi-font-family: Calibri"> B.  <span style="FONT-FAMILY: 'Calibri','sans-serif'">Mechanical advantage by increasing force <span style="FONT-FAMILY: 'Calibri','sans-serif'; mso-fareast-font-family: Calibri; mso-bidi-font-family: Calibri"> C.  <span style="FONT-FAMILY: 'Calibri','sans-serif'">Reduce friction <span style="FONT-FAMILY: 'Calibri','sans-serif'"> <span style="FONT-FAMILY: 'Calibri','sans-serif'; mso-fareast-font-family: Calibri; mso-bidi-font-family: Calibri"> 4. <span style="FONT-FAMILY: 'Calibri','sans-serif'">Which object is a Pulley? <span style="FONT-FAMILY: 'Calibri','sans-serif'; mso-fareast-font-family: Calibri; mso-bidi-font-family: Calibri"> A.  <span style="FONT-FAMILY: 'Calibri','sans-serif'">Seesaw <span style="FONT-FAMILY: 'Calibri','sans-serif'; mso-fareast-font-family: Calibri; mso-bidi-font-family: Calibri"> B.  <span style="FONT-FAMILY: 'Calibri','sans-serif'">Fishing Pole <span style="FONT-FAMILY: 'Calibri','sans-serif'; mso-fareast-font-family: Calibri; mso-bidi-font-family: Calibri"> C.  <span style="FONT-FAMILY: 'Calibri','sans-serif'">Elevator <span style="FONT-FAMILY: 'Calibri','sans-serif'"> <span style="FONT-FAMILY: 'Calibri','sans-serif'; mso-fareast-font-family: Calibri; mso-bidi-font-family: Calibri"> 5. <span style="FONT-FAMILY: 'Calibri','sans-serif'">Force is? <span style="FONT-FAMILY: 'Calibri','sans-serif'; mso-fareast-font-family: Calibri; mso-bidi-font-family: Calibri"> A.  <span style="FONT-FAMILY: 'Calibri','sans-serif'">Anything that changes the speed, direction, or motion of an object <span style="FONT-FAMILY: 'Calibri','sans-serif'; mso-fareast-font-family: Calibri; mso-bidi-font-family: Calibri"> B.  <span style="FONT-FAMILY: 'Calibri','sans-serif'">Something that is moved <span style="FONT-FAMILY: 'Calibri','sans-serif'; mso-fareast-font-family: Calibri; mso-bidi-font-family: Calibri"> C.  <span style="FONT-FAMILY: 'Calibri','sans-serif'">A loop that connects two fixed pulleys <span style="FONT-FAMILY: 'Calibri','sans-serif'"> <span style="FONT-FAMILY: 'Calibri','sans-serif'"> 6. A pulley in which the wheel is directly attached to the load is a ________? <span style="FONT-FAMILY: 'Calibri','sans-serif'"> A. Fixed pulley <span style="FONT-FAMILY: 'Calibri','sans-serif'"> B. Moveable pulley <span style="FONT-FAMILY: 'Calibri','sans-serif'"> C. Double Pulley <span style="FONT-FAMILY: 'Calibri','sans-serif'"> <span style="FONT-FAMILY: 'Calibri','sans-serif'; mso-fareast-font-family: Calibri; mso-bidi-font-family: Calibri"> 6. <span style="FONT-FAMILY: 'Calibri','sans-serif'">_______happens when a force acts on something over a distance to either lift it or overcome resistance. <span style="FONT-FAMILY: 'Calibri','sans-serif'"> A. Friction <span style="FONT-FAMILY: 'Calibri','sans-serif'">B. Force <span style="FONT-FAMILY: 'Calibri','sans-serif'"> C. Work <span style="FONT-FAMILY: 'Calibri','sans-serif'"> <span style="FONT-FAMILY: 'Calibri','sans-serif'">8. Mechanical advantage is ______? <span style="FONT-FAMILY: 'Calibri','sans-serif'"> A. the advantage is a favorable ratio of input force to output force <span style="FONT-FAMILY: 'Calibri','sans-serif'"> B. when the machine does all the work for the user <span style="FONT-FAMILY: 'Calibri','sans-serif'"> C. when the user exerts more effort than the machine <span style="FONT-FAMILY: 'Calibri','sans-serif'"> <span style="FONT-FAMILY: 'Calibri','sans-serif'">9. If a man was working on his house and wanted to get something heavy to the top floor using a pulley and he was alone, which pulley system would work best? <span style="FONT-FAMILY: 'Calibri','sans-serif'"> A. Compound pulley <span style="FONT-FAMILY: 'Calibri','sans-serif'"> B. Moveable pulley <span style="FONT-FAMILY: 'Calibri','sans-serif'"> C. Fixed pulley <span style="FONT-FAMILY: 'Calibri','sans-serif'"> <span style="FONT-FAMILY: 'Calibri','sans-serif'">10. Which is NOT an example of a pulley? <span style="FONT-FAMILY: 'Calibri','sans-serif'"> A. toilet flusher <span style="FONT-FAMILY: 'Calibri','sans-serif'"> B. A crane <span style="FONT-FAMILY: 'Calibri','sans-serif'">  C. window blinds
 * Pulley Questions**