Friction and Drag Flashcards
1
Q
Friction is a force. Does it slow down a moving object or speed it up?
A
Slows it down
2
Q
When two surfaces rub on each other it creates what force?
A
Friction
3
Q
If a surface is smooth, like ice will it create more or less friction than concrete
A
Less
4
Q
When an object moves through liquid or gas, what is the force called that slows it down?
A
Drag
5
Q
Explain why drag happens
A
the fluid particles hit the object and slow it down. The object will need more force to get through.
6
Q
Both drag and friction are called what two-word phrase starting c—— f—-
A
contact force, because the object and fluid particles are in contact with each other.
7
Q
What are forces measures in, begins with N
A
Newtons
8
Q
How do you write Newtons (force) in an equation
A
N
