Words that Start with "I" or "E"
Newton's Laws of Motion
Units of
Measurement
Measurement
Collisions
Friction and Forces
100
An object's resistance to a change in its motion is called ___________.
Inertia
100
"An object at rest will remain at rest..." What law is this statement from?
Newton's First Law of Motion
100
Unit of measurement for "force."
Newtons
100
Collisions are classified as either _________ or __________.
Elastic or inelastic
100
This non-contact force keeps objects pushed down.
Gravity
200
This type of collision entails the conservation of momentum but not the conservation of kinetic energy.
Inelastic collisions
200
"For every action, there is an equal and opposite reaction..." What law is this statement from?
Newton's Third Law of Motion
200
In the formula: Net Force = mass x acceleration, what is the SI unit for acceleration?
meters per second squared (m/s2)
200
In either type of collision, momentum is ___________.
Conserved
200
This force supports the weight of an object on a surface. It is what keeps an object like a book stationary on a desk.
Normal Force
300
When two ________ forces act in opposite directions on an object, they are called "balanced forces."
equal
300
Action-Reaction Pairs
Newton's Third Law of Motion
300
Kilograms x m/s is a unit of measurement for ?
Momentum or impulse
300
In an inelastic collision, kinetic energy is __________.
Transformed (into a different kind of energy)
300
The sum of all the forces working on an object.
Net Force
400
Newton's Cradle demonstrates an
___________ collision.
Elastic
400
Objects with larger mass require more force to accelerate.
Newton's Second Law of Motion
400
What does this symbol represent?:
Coefficient of friction
400
One way to tell if a car collision is inelastic is if one or both cars are not ___________.
Moving
400
The two (2) coefficients of friction are either _______ or ________.
Static or Kinetic
500
The change in momentum is known as _____________.
Impulse
500
A larger net force acting on an object causes a greater acceleration.
Newton's Second Law of Motion
500
Newton-second is a unit of measurement for ?
Momentum or Impulse
500
The term "deformation" means ?
Damage or distortion
500
This force works in opposition to motion.
Friction Force