Simple Machines and Mechanisms

Welcome to another ScienceSource practice quiz!
Pick the best answer for each question.
Your score will decrease with every wrong guess. If you guess wrong 3 times on a question, you will receive no points.
Get every answer correct the first time to score 100%. Good luck!
If you wish to try the quiz again, just click the "reload" button in your browser.

Home | Back to Unit B

When you have completed the quiz, your score will appear here--->

Which is not a type of simple machine?
1. Spring
2. Wedge
3. Inclined plane
4. Lever
Which is an example of a third class lever?
1. Swinging an axe
2. (Diving) springboard
3. Can opener
4. Seesaw
Which is not an example of a first class lever?
1. Nutcracker
2. Hammer (pulling out a nail)
3. Boat oars (attached to the sides of the boat)
4. Shoehorn
Which class (or classes) of lever always changes the direction of force?
1. First class
2. Second class
3. Third class
4. Second and first classes
What is the ideal mechanical advantage of a lever with an output arm of 10 cm and an input arm of 40 cm?
1. 4
2. 50
3. 30
4. 0.25
When this tennis player hits the ball what type of simple machine are her arms making?
1. Lever
2. Wedge
3. Wheel and axle
4. Inclined plane
A water wheel uses the force of gravity on water to drive a large wheel.

The shaft of the water wheel performs a task, that is, to generator power. Which of the following statements is not true of the water wheel?
1. The shaft of the water wheel mechanism must turn faster than the wheel
2. The wheel of the water wheel mechanism will turn faster than the shaft
3. Friction between the shaft and any supporting pieces touching it will reduce the effectiveness of the water wheel
4. The water wheel represents a wheel and axle simple machine
Which of the following represents the arrangement of a third class lever?
1. The input force is between the output force and the fulcrum.
2. The fulcrum is between the output and input forces.
3. The output force is between the input force and the fulcrum.
4. The load is on top of the fulcrum.
Which is an example of a wheel and axle?
1. Doorknob
2. Spiral staircase
3. Crow bar
4. Car door
You have been given the task of removing paint from an old chair. The best choice of simple machine for the task would be a
1. wedge.
2. wheel and axle.
3. screw.
4. class three lever.

Simple Machines and Mechanisms - Section 5.1 Quiz