Conceptual Physics Chapter 7 - Newton's 3rd Law
Terms in this set (25)
When a hockey puck is struck with a hockey stick, a ______ acts on the puck and the puck _________
What is the type of force that causes acceleration?
The combination of forces acting on an object is known as the ______ force.
For a constant force, how does an increase in an objects mass affect its acceleration?
It slows the acceleration
What does it mean for two quantities to be inversely proportional to one another?
When one goes up the other goes down
How are mass and acceleration related?
What are the quantities related to Newton's second law?
Acceleration is directly proportional to what?
True or False? The acceleration of an object is equal to the net force acting on it divided by the objects mass.
A 100-N force is used to accelerate a large push cart across the floor. What is the force required to accelerate the push cart twice as fast?
An object accelerates when a net force is applied to it. What would have to be done to double the objects acceleration?
Halve the mass
Newton's law of motion
True or False? Friction does not depend on the type of materials in contact w/ each other.
True or False? Friction depends on how much the materials in contact are pushed together.
Substances that are liquids or gases are also called....
A _________ is a diagram in which all of the forces acting on and object are shown.
Quantities related to pressure
force per unit of area
What is the equation for pressure when the force is perpendicular to the area?
An object dropped in air that experiences no air resistance is said to be in _______
Definition of Terminal Speed
when the acceleration of a falling object is zero
Definition of Terminal Velocity
terminal speed together with the direction of motion
Definition of Interaction
the action + reaction
Action and reaction forces are equal in ______ and opposite in _______
What are the two steps you take to identify a pair of action-reaction forces?
a.) Identify interacting objects
b.) if the action is A on B then the reaction is B on A
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