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12.2 Simple Machines Multiple Choice

1. How many classes of levers are there?
One, Two, Three, Four
2. One example of a lever is:
pulley, wedge, screw, block and tackle
3. Which of the following is an example of a compound machine?
scissors, ax blade, wheel and axle, screw
4. A wedge is a modified:
wheel and axle, inclined plane, lever, pulley
5. school Which is an example of a second class lever?
block and tackle, wheelbarrow, wheel and axle, screw
6. short answer questions Which is an example of multiple pulleys combined?
wheelbarrow, wheel and axle, screw, block and tackle
7. What is the mechanical advantage of a single, fixed pulley?
0.5, 1, 2, 4
8. A ramp is a simple inclined plane that allows one to apply an input force that is _____ to the output force.
perpendicular to, equal to, greater than, less than
9. Which is an example of a lever or pulley connected to a shaft?
wheelbarrow, wheel and axle, screw, block and tackle