First Law of Motion
What is the abbreviation used when measuring force?
Newton (N)
A push or pull on an object that changes motion or shape of an object
What is force?
A force of attraction between objects due to their masses.
What is gravity?
Unless acted on by an unbalanced force, an object at rest stays at rest and an object in motion stays in motion.
What is Newton's First Law of Motion?
The speed of an object in a certain direction
What is velocity?
A contact force that resists motion between two objects.
What is Friction?
3N + -3N =
0N
Rate at which velocity changes over time
What is acceleration?
To slow down the fall of an object, you want to ____ the air resistance.
Increase
The tendency of objects to resist any change in motion.
What is Inertia?
The tendency of an object to resist changes in motion.
What is inertia?
What is decreased friction?
Which ball has more inertia? Beach ball or Bowling ball?
Bowling ball
A location to which another location is compared.
What is reference point?
Removing air to create a vacuum like in space, ____ the amount of air resistance acting on a moving object.
Decreases