Directions Read the following carefully Choose the letter of the correct answer Write it on the
space provided before the number
1) A push and pull on an object is called
A) force
B) motion
C) pressure
D) push-pull
2) What increases friction ?
A) more speed
B) rough surfaces
C) smooth surfaces
D) more surface area
3) The following can reduce friction EXCEPT
A) grease
B) oil
C) sand
D) water
4) A ball on the ground slows down and finally stops. This is because of
A) friction
B) force
C) motion
D) less force applied
5) The rubbing of one object or surface against another is
A) electrical force
C) magnetic force
B) frictional force
D) gravitational force
6) Which of the following statements is TRUE ?
A) Static friction results when moving objects or rough surfaces rub together
B) Static friction occurs in a swimmer swimming in water or a boat travelling in water
C) Static friction occurs between two objects that are in motion against each other
D) Static friction occurs when two objects rub against each other or slide against each
other
7) Why does static friction exists?
A) Because surfaces are smoother when you move an object
B) Because surfaces are smoother before you move an object
C) Because surfaces have imperfections and adhesion occurs between two stationary
surfaces
D) Because surfaces have imperfections but adhesion does not occur between the two
stationary surfaces
8) Justine places the pile of books on the table What friction is being shown?
A) fluid friction
C) rolling friction
B) static friction
D) sliding friction​