Activities

1. A fork is an example of a
   1. Pulley
   2. Screw
   3. Wedge
   4. Wheel and Axel
      
      
2. What type of simple machine is found on the bottom of a light bulb?
   1. Pulley
   2. Screw
   3. Wedge
   4. Wheel and Axel
      
      
3. Complete the chart by listing two examples of each type of simple machine.
   
   
4. Create a Venn diagram to compare and contrast simple and complex machines. Include two examples of a simple and a complex machine in your diagram.
   
   
   
   
5. Choose two simple machines found in your home and determine what type of simple machine they are and explain how they make your life easier.
   
   
6. Describe a basic hydraulic system. Include a labeled diagram as part of your explanation.
   
   

Answer Key/Rubric

1. C
   
   
2. B
   
   
3. Acceptable responses might include, but not be limited to:

4. Acceptable responses might include, but not be limited to:

5. Acceptable responses might include, but not be limited to:

• Shoe laces – They are a type of pulley that help keep my shoes on my feet.
• Clock on the wall – It is a type of wheel and axel and it tells me what time it is.
• Knife and fork – They are a type of wedge and without them I would eat my meals with my fingers.
• Slide in backyard – It is an incline plane and keeps my little brother and sister busy when I have to watch them.

6. Acceptable responses might include, but not be limited to:
   • An example of a basic hydraulic system are two pistons connected by a pipe. The pistons and the pipe contain some sort of lubricant like oil. There can be no air in the pipe for the system to work properly. When force is applied on one piston (a) it pushes the lubricant down into the pipe (b) The downward pressure causes the oil to move into the second piston (c) When downward pressure is applied to the second piston the oil then returns to the first piston.