Types of Forces
A push or pull on an object.
What is a force?
pg.45
The combination of all the forces acting on an object.
What is net force?
pg.55
Causes no change in an objects velocity.
What are balanced forces?
pg.57
What are forces?
pg.62
The forces two objects apply to each other.
What is a force pair?
pg.71
A force that one object can apply to another object without touching it.
What is a non contact force?
pg.46
The forces applied to an object act in the same direction.
What is the sum of the individual forces?
pg.55
The constant velocity reached when air resistance equals the force of gravity acting on a falling object.
What is terminal velocity?
pg.57
Speed in a certain direction.
What is velocity?
pg.62
When one object exerts a force on a second object, the second object exerts an equal force in the opposite direction on the first object.
What is Newton's third law of motion?
pg.71
A push or a pull on one object by another that is touching it.
What is a contact force?
pg.45
A direction that you choose from a starting point to describe an objects position.
What is reference direction?
pg.55
The net force on an object is zero, the motion of an object does not change.
What is Newton's first law of motion?
pg.57
Acceleration of an object is equal to the net force acting on the object divided by the objects mass.
What is Newton's second law of motion?
pg.65
Pushing against a object.
What is action force?
pg.72
The SI unit for force.
What is newton (N)?
pg.46
The sum of the forces.
What is the strength of the net force?
pg.55
Unbalanced forces act on an object at rest.
What is an object moving?
pg.57
In a circular motion, a force that acts perpendicular to the direction of motion, toward the center of the curve.
What is centripetal force?
pg.66
Is a measure of how hard it is to stop a moving object.
What is momentum?
pg.73
The direction that an arrow points.
What is the direction in which a force was applied?
pg.46
Forces acting on an object that combine and form a net force of zero.
What are balanced forces?
pg.56
The tendency of an object to resist a change in its motion.
What is inertia?
pg.58
Any motion in which an object is moving alone a curved path.
What is circular motion?
pg.66
Momentum relates to.
What are Newton's first two laws?
pg.73