dandrea_multiplechoice

**Pulley Quiz**
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 C. Fixed pulley

3. What do we gain by using simple machines? A. Save energy B. Mechanical advantage by increasing force C. Reduce friction

4. Which object is a pulley? A. Seesaw B. Fishing Pole C. Elevator

5. Force is ___?__ A. Anything that changes the speed, direction of motion of an object B. Something that is moved C. A loop that connects two fixed pulleys

6. A pulley in which the wheel is directly attached to the load is a ? A. Fixed Pulley B. Movable Pulley C. Double Pulley

7. _ happens when a force acts on something over a distance to either lift it or overcome resistance? A. Friction B. Force C. Work

8. Mechanical advantage is __? A. The advantage is a favorable ratio of input force to output force B. When the machine does the work for the user C. When the user exerts more effort than the machine

9. If a man was working on his house and wanted to get something heavy to the second floor using a pulley and he was alone, which pulley system would work best? A. Compound Pulley B. Movable Pulley C. Fixed Pulley

10. Which is not an example of a pulley? A. toilet flusher (handle) B. Crane C. Window Blinds

This mulitple choice test objectives are: GLE PS3, students are able to explain how a single pulley works.