Forces Flashcards
What is force?
a push or pull on an object
What type of measure is force?
vector
What is the SI unit for force?
Newtons (N)
What is a contact force?
a force without physical contact
What is a noncontact force?
force without physical contact
What is the relationship between mass and gravity?
positive, direct, and linear
What is the relationship between distance and gravity?
inverse, nonlinear, negative, and exponential
What is an electromagnetic force?
a force where opposites of magnets attract, and likes repel
What is friction?
contact force; when two surfaces rub against each other
What is applied force?
contact force; force applied by a person or another object
What is tension force?
contact force; a pull force as in a string or a rope
What is normal force?
contact force; a force that keeps everything normal as in a wall pushing against you when you push against it
What is spring force?
contact force; a force that acts like a stretched or compressed spring
What is air resistance?
contact force; friction in the air
What is static friction?
type of friction; when two things rub together and static electricity forms
