Multiple Response
Identify one
or more choices that best complete the statement or answer the question.
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1.
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 Look carefully at the pictures of the pulley
systems above. Select ANY AND ALL pulley systems that WILL work PROPERLY...
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Matching
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a. | a benefit derived from a simple machine. May be directional or
mechanical | g. | a simple machine; can lift a load or overcome resistance | b. | the point where a
lever arm pivots | h. | the force
needed to lift a load or overcome a resistance | c. | the mass lifted or the resistance
overcome | i. | a device that
provides an advantage (directional or mechanical) | d. | a simple machine, made up of a grooved wheel
that is free to rotate on an axle | j. | a stick or beam that is free to pivot at a point | e. | the unit of
measurement used to determine effort | k. | instrument used to measure effort | f. | a drawing that explains the relationship of the
parts of a system |
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2.
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Newton
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3.
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lever
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4.
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fulcrum
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5.
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effort
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6.
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simple machine
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7.
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advantage
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8.
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diagram
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9.
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lever arm
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10.
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spring scale
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11.
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load
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12.
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pulley
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Short Answer
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13.
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Look at the spring scale below. Type the correct reading in the answer
box. You will have to grade this question youself at the end of the test...... 
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14.
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Look at the spring scale below. Type the correct reading in the answer
box. You will have to grade this question youself at the end of the test...... 
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15.
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Look at the spring scale below. Type the correct reading in the answer
box. You will have to grade this question youself at the end of the test...... 
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Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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16.
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Look at the picture below:  The effort needed to lift
the load in X will be ____ as much as the effort needed to lift the load in Z a. | one-third | c. | one-half | b. | two times | d. | three times |
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17.
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 Look at the pulley systems above. Which
pulley system does NOT give the user an advantage by reducing the effort? a. | System A | c. | System B | b. | System C | d. | System D |
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18.
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Look at this pulley system:  How much effort is needed
to lift the load using this system: a. | 120 N | c. | 180 N | b. | 720 N | d. | 360 N |
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19.
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Look at this picture:  If Mrs. Soy wants to lift
the load 10 meters using pulley system X, how far does she need to pull the rope? a. | 10 meters | c. | 20 meters | b. | 40 meters | d. | 30 meters |
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20.
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Look at the following lever diagrams. Choose the one that shows a
CORRECTLY diagrammed lever of the given class. NOTE: the letters are not included -- just go by
the shapes. Which of these shows the CORRECT diagram for a CLASS-1 LEVER?  a. | Diagram C | d. | Diagram A | b. | Diagram D | e. | Diagram B | c. | Diagram
E | f. | Diagram
F |
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21.
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Look at the following lever diagrams. Choose the one that shows a
CORRECTLY diagrammed lever of the given class. NOTE: the letters are not included -- just go by
the shapes. Which of these shows the CORRECT diagram for a CLASS-2 LEVER?  a. | Diagram F | d. | Diagram E | b. | Diagram A | e. | Diagram C | c. | Diagram
B | f. | Diagram
D |
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22.
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When the effort is applied downward in a lever or pulley system, why do we add
0.5 N to the spring scale reading?
a. | Because our teacher said to | c. | Because the spring scale exerts a
force of 0.5 N | b. | Because it’s more precise | d. | Because the spring scale wasn’t on 0 when
we started |
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