Force
This is a push or pull acting on an object
What is a force?
Newton’s First Law is also called this.
What is the Law of Inertia?
The equation representing Newton’s Second Law.
What is F = ma?
The phrase summarizing Newton’s Third Law.
What is "For every action, there’s an equal and opposite reaction"
The force pulling objects toward Earth.
What is gravity?
The SI unit of force, symbolized by "N.”
What is a newton?
The tendency of an object to resist changes in motion.
What is inertia?
If a 10 kg object accelerates at 2 m/s², the net force is this.
What is 20 N?
When you push a wall, it pushes back with this kind of force.
What is an equal and opposite force?
The force perpendicular to a surface that supports an object.
What is the normal force?
The combination of all forces acting on an object.
What is net force?
If a book is at rest on a table, these two forces are balanced.
What are gravity and normal force?
The relationship between acceleration and mass (if force is constant).
What is inversely proportional?
The action-reaction pair when a rocket expels gas.
What is the gas pushing the rocket forward?
Air resistance is a type of this force.
What is fluid friction/drag?
A force that opposes motion between two touching surfaces.
What is friction?
When a car stops suddenly, this causes passengers to lurch forward.
What is inertia?
Doubling the force on an object does this to its acceleration (if mass is constant).
What is doubles it?
Why don’t action-reaction forces cancel out?
What is "they act on different objects"
The type of friction acting on a rolling ball.
What is rolling friction?
A diagram showing all forces acting on an object with arrows.
What is a free-body diagram?
The state of an object when net force is zero.
What is equilibrium
The acceleration of a 50 kg object with a 100 N net force.
What is 2 m/s²
The force a swimmer uses to push water backward, propelling them forward.
What is action-reaction pair?
The force exerted by a stretched spring or rope.
What is tension?