Assessment Card
Analyze the sentences below. Choose the letter of the correct answer
Write the chosen letter on a separate sheet of paper
1.
Which of the following statements best describes friction? A. It is a force that
occurs in two solids.
B. It is a force that occurs only on rough surfaces.
C. It is a force that occurs between solids and liquids.
D. It is a force that occurs when surfaces touch each other.
2. Which can cause the greatest friction?
A. polished floor B. rough floor C. tiled floor D. wet floor
3. How can you best reduce friction between the bottom or feet of furniture and the
floor?
A. by making the floor smooth
B. by keeping furniture on their place
C. by applying lubricants like wax on the floor
D. by putting wheels or rollers on the bottom or feet of furniture
4. When is friction undesirable?
A. pushing furniture
C. walking on the street
B. lighting a matchstick D. using the breaks when approaching a stoplight
5. Which surface will produce the least amount of friction? A. fuzzy soccer field
C. gravel running track B. grassy soccer field
D. smooth glass
tabletop
6. Why is it easy to slip when there is water on a smooth floor?
A. The water increases the friction between your feet and the floor.
B. The water is a lubricant and reduces the friction between your feet and the
floor.
C. The friction between your feet and the floor changes from kinetic to static
friction