Forces and Friction Test
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by Jennifer May
| 10 Questions
Note from the author:
Forces and friction including vector diagrams.
1
2
At lunch, Mrs. Curry and Mrs. May decided that they needed to move the refrigerator to clean behind it. They both tried to move it, but the refrigerator would not move. Draw arrows below to represent the forces acting on the refrigerator.
2
3
Explain what friction is and what type of friction (sliding, static, fluid, or rolling). is happening in the scenario above. Make sure you use complete and detailed sentences with correct grammar.
3
6
Complete the questions below relating to the picture. You may answer it on the picture. Do not forget the units.
4
6
Complete the questions below relating to the picture. You may answer it on the picture. Do not forget the units.
5
6
Complete the questions below relating to the picture. You may answer it on the picture. Do not forget the units.
6
6
Evan and Jaelin are pushing Evan's truck with a dead battery with forces of 20 N and 25 N in the same direction. What is the net force applied on the truck? Draw arrows with on the picture showing the forces and tell whether your equation is balanced or unbalanced.
7
5
Complete the questions below relating to the picture. You may answer it on the picture. Do not forget the units.
8
5
A young girl is pulling two children in a wagon and she is late getting home. How can she make the wagon increase in speed without using more force to pull or push the wagon? Explain your answer. Do not over think the answer. You can do this!
9
1
Friction between surfaces can be reduced by all of the following EXCEPT:
Smoothing the surfaces.
Using wheels or rollers.
Lubricating or rolling the surfaces.
Increasing the mass of the objects.
10
4
A student is doing an investigation using blocks of wood, sand paper, and aluminum foil. She pulls one block of wood across a sheet of sand paper and the other block across a smooth sheet of aluminum foil. Which block will she be able to pull with less force? Why?