Vocab 1
The tendency of an object to resist a change in motion
inertia
The product of an object's mass and velocity
Momentum
Fluid friction acting on an object moving through the air
Air Resistance
True or False:
The bigger and faster an object is, the more momentum it will have.
True
What force besides gravity acts on a projectile?
Air resistance
the amount of matter in an object
mass
A force of attraction between objects that is due to their masses.
Gravity
friction that occurs when one solid surface slides over another
Sliding Friction
True or False: Earth’s gravitational force acts in a downward toward the center of Earth.
True
Which Law is this? An object at rest will stay at rest as long as the net force acting on the object is zero.
State Newton’s First Law
A push or pull on an object
Force
The combination of all forces acting on an object
Net Force
friction that occurs as an object moves through a fluid
Fluid Force
True or False: Newton’s first law of motion is sometimes called the law of velocity.
False: Inertia
Momentum depends upon _________.
mass and velocity
SI unit of force
Newton (N)
the curved path that an object follows when thrown, launched, or otherwise projected near the surface of Earth
Projectile Motion
a friction force that acts on objects that are not moving
Static Friction
When a force is exerted on an object the object responds with an equal and opposite force, this is called action.
False: action-reaction pair
What equation states Newton’s second law of motion?
a=F/m
the constant velocity of a falling object when the force of air resistance is equal in magnitude and opposite in direction to the force of gravity
Terminal Velocity
Matter is not created nor destroyed in any chemical or physical change
Law of Conservation
friction that occurs when an object rolls over a surface
Rolling Friction
True or False: A change in acceleration due to force affects the weight of an object.
False: gravity
Final Jeopardy:
What does Miss Johnson like in her McDonald's coffee, every morning?
10 Creams and 3 Splenda