NEW
Font size
WorksheetsFriction-Revision
Total questions: 20
Worksheet time: 19mins
you can walk because there is friction between your __________ and ______________
ground and air
feet and ground
feet and air
air and ground
having streamlined vehicles can reduce friction
true
false
these are examples of lubricants
oil,
grease
powder
all of the above
What is rolling friction?
friction between two surfaces that aren't moving relatively to each other
friction between a rolling object and the surface that it is rolling on
friction where an object rubs against another surface
friction of something going through any type of liquid or air
What is fluid friction?
friction is friction between two surfaces that aren't moving relatively to each other
friction between a rolling object and the surface that it is rolling on
friction where an object slides rubs against another surface
friction of something going through any type of liquid or air
What is sliding friction?
friction between two surfaces that aren't moving relatively to each other
friction between a rolling object and the surface that it is rolling on
friction where an object rubs against another surface
friction of something going through any type of liquid or air
Friction is an example of _____________
contact force
non contact force
both of these
none of these
The direction of force of friction is always _____ to the direction of motion
same
opposite
unchanged
none of these
Imagine you decide to jump out of an airplane 🛩
Which force is going to pull you down towards earth
Fluid Friction
Static Friction
Gravity
The wind from the airplane
Which of these materials do you predict would have the MOST amount of friction
Metal
Tile
Sand Paper
Denim
