the fluid friction experienced by objects falling through the air
What is air resistance
100
a force that stretches objects
What is the elastic force
100
the force that one surface exerts on another when the two surfaces rub against eachother
What is friction
200
the tendancy of an object to resist any change in its motion
What is inertia
200
an object that is thrown
What is projectile
200
an elastic force that stretches or pulls on the molecules in matter
What is tension force
200
the ratio of the mass of a substance to its volume
What is density
200
the motion of a falling object when the only force acting on it is gravity
What is free fall
300
speed in a given direction
What is velocity
300
an elastic force that squeezes or pushes molecules in matter together
What is compression force
300
a material that can easily flow
What is a fluid
300
1. an object will remain at rest or moving at a constant velocity unless acted on by an unbalanced force.
2. acceleration depends on the net force acting on the object and the mass of the object
3. if one object exerts a force on another object, then the second object exerts a force of equal strength in the opposite direction on the first object
What is Newtons three laws
300
a force that causes an object to move in a circle
What is centripetal force
400
the force exerted on a surface divided by the total area over which the force is exerted
What is pressure
400
a unit of pressure equal to one newton per square meter
What is a pascal
400
a measure of how much matter is in an object
What is mass
400
static friction
rolling friction
sliding friction
fluid friction
What are types of friction
400
the upward force exerted by a fluid on a submerged object
What is buoyancy
500
the rate at which velocity changes with time
What is acceleration
500
a measure of the force of gravity on an object
What is weight
500
the product of an object's mass and velocity
What is momentum
500
force=mass x acceleration
pressure=force/area
momentum=mass x velocity
acceleration=v2-v1/time
weight=mass x acceleration due to gravity
What is calculations of force, pressure, momentum, acceleration and weight
500
the rule that the faster a fluid moves the less pressure the fluid exerts