Force
A push or pull on an object.
Force
The amount of matter in an object.
Mass
Who is the scientist that came up with the Laws of Motion?
Newton
A _______________ is the equal but opposite force exerted by the second object in response to that action.
reaction
The process of changing position.
Motion
When balanced forces act on an object, there is no change in that object’s _____________________.
motion
The gravitational force exerted on an object.
Weight
A force that resists the motion of two surfaces that are touching.
Friction
An _______________ is the force applied by one object onto another
action
A measure of how hard it is to stop a moving object
Momentum
The combination of all the forces acting on an object.
Net Force
An attraction force that exists between all objects that have mass.
Gravity
An object at rest will remain at rest unless an external force acts on it.
Netwon's First Law of Motion
Force is a _____ or pull on an object.
push
_____________________affects mass by giving it “weight.
Gravity
Unbalanced forces result in ___________________ in the direction of the stronger force.
Forces acting on an object that combine and form a vet force that is not zero.
Unbalanced Force
The tendency of an object to to resist a change in its motion.
Inertia
Any time something speeds up, slows down, or changes direction, _____________________ is occurring.
Acceleration
For every action (force) there is an equal and opposite reaction (force).
Newton's Third Law of Motion
Forces acting on an object that combine and form a net force of zero.
Balanced Force
True or False: Your mass on Earth is NOT the same as your mass in Space.
False
An object in motion will remain in motion unless an external force acts on it.
Newton's First Law of Motion
The greater the mass of an object, the more force is needed to accelerate that object (speed it up or slow it down).
Newton's Second Law of Motion
The total momentum of a group of objects stays the same unless outside forces act on the objects.
Law of Conservation of Momentum