The property of a body that opposes any change in its state of motion:
What is inertia
100
Two or more forces acting on the same point at the same time:
What is concurrent forces
100
What is force resolution?
What is finding concurrent forces from the resultant
100
Friction is practically independent of:
What is surface area
100
Forces acting on an object at different points are called:
What is parallel forces
200
Newton's 2nd law of motion can be stated mathematically in this way:
What is F = ma
200
A single force that has the same effect as two or more forces acting at a single point:
What is resultant force
200
The force of attraction between an object and the earth is calculated using this formula:
What is Fw = mg
200
The ratio of the force of friction to the force pressing the 2 surfaces together:
What is coefficient of friction
200
The point at which an equal and opposite force could be applied and the object would remain at rest:
What is center of gravity
300
The force required to accelerate a 1 kg mass at 1 m/s/s
What is Newton
300
A single force that if applied will cause a body to remain at rest or continue at the same speed in a straight line:
What is equilibrant force
300
The component force that tends to move an object down an incline:
What is Fp
300
Identify the 2 types of friction and how they compare:
What is starting friction is always greater than sliding friction
300
The product of a force and the distance of that force from a stationary reference point is called _ and it's units are _.
What is torque, N-m
400
Law that summarizes the fact that when you walk you push on the floor and floor pushes back on you
What is Newton's 3rd Law or Law of Interaction
400
The state in which there are no unbalanced forces acting on an objects:
What is translational equilibrium
400
The component of Fw that rests on an incline
What is Fn
400
Identify the 2 factors that do affect friction magnitude:
What is force pressing the surfaces together & the interlocking irregularities and/or intermolecular forces
400
What 2 conditions must be satisfied for translational and rotational equilibrium:
What is Fup = Fdown and sum Tcc = sum Tc
500
A physical quantity with both magnitude and direction that can affect the state of motion of an object:
What is force
500
A force of 100 N is acting north and another force of 100 N is acting west. What is the magnitude and direction of the force applied to keep in the object in place?
What is 141 N @ 45 degrees S of E
500
What happens to the component forces on an incline as the angle decreases:
What is Fn increases and Fp decreases
500
An object on a incline that makes an angle of 35 degrees with the horizontal slides down at a constant velocity. What is the coefficient of friction?
What is 0.70
500
How is the stationary reference point in a torque problem determined?