Quiz: Simple Machines

1. An example of a lever is:
A the hammer
B the see-saw
C both of the above
2. Examples of inclined planes are:
A gliders and rockets
B ramps and wedges
C wheels and axles
3. An example of a wheel and axle is:
A a screw
B a door knob
C car engines
4. A pulley system used by mechanics to lift car engines is called a:
A block and tackle
B inclined plane
C third order lever
5. Another name for the pivot of a lever is the:
A torque
B turning angle
C fulcrum
6. The load in a lever is the:
A focus of muscular contraction
B weight to be moved
C pivot point of the lever
7. The effort of a lever is the:
A exertion of muscular activity
B weight to be moved
C turning point
8. An example of a first order lever with effort, fulcrum and load in that order is:
A scissors
B a bottle opener
C a fishing rod
9. An example of a second order lever with fulcrum, load and effort in that order is:
Aa hammer pulling out a nail
Ba wheelbarrow
Ca shovel shifting soil
10. An example of a third order lever with fulcrum, effort and load in that order is:
Ascissors
Ba shovel shifting soil
Cpliers
11. The rule for mechanical advantage of a Lever is:
ALoad / Effort
BEffort arm length / Load arm length
Cboth of the above
12. "Sloped length / Vertical height" is the rule for the mechanical advantage of the:
Ainclined plane
Blever
Cpulley
13. The rule for the mechanical advantage of a wheel and axle is:
ACircumference of wheel / Circumference of axle
BAxle diameter / Wheel diameter
CWheel diameter / Axle diameter
14. The mechanical advantage of a pulley is:
APulley diameter / Rope length
BLoad rope length / Effort rope length
Cthe number of ropes supporting the load
15. If a simple machine requires an effort of 20 newtons to lift a load of 100 newtons, its mechanical advantage is:
A5
B5 newtons
C5 MA

 

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