Which of the following is the cause of an acceleration?
a. speed c. force b. inertia d. velocity
c - force
If a nonzero net force is acting on an object, then the object is definitely...
a. at rest.
c. being accelerated.
b. moving with a constant velocity.
d. losing mass.
c - being accelerated
True or false: force is proportional to mass and acceleration
True
what is the formula for Newton's second law of motion?
F = M * A
If Newton was Yoda, what do you think his famous quote would be?
May the mass times acceleration be with you
What causes a moving object to change direction?
a. acceleration c. inertia b. velocity d. force
D - force
Newton’s third law of motion involves the interactions of...
a. one object and one force.
c. two objects and one force.
b. one object and two forces.
d. two objects and two forces.
d - two objects and two forces
True or False: Static friction is less than kinetic friction
False; Kinetic friction is less than static friction
what is the SI unit of Force?
N - Newton
what is Newton's famous pickup line?
excuse me, but I'm really attracted to you and according to my third law, you're attracted to me too.
Which of the following forces exists between objects even in the absence of direct physical contact?
a. frictional force c. contact force b. fundamental force d. field force
D - field force
A car goes forward along a level road at a constant velocity. The additional force needed to bring the car into equilibrium is...
a. greater than the normal force times the coefficient of static friction.
b. equal to the normal force times the coefficient of static friction.
c. the normal force times the coefficient of kinetic friction.
d. zero.
d - zero
True or False: Field forces also exist in pairs.
True
What is coefficient of friction symbol called?
mu (Greek letter)
why do you think sir Isacc Newton was such a chill guy?
because he was pretty down-to-earth.
The magnitude of the gravitational force acting on an object is...
a. frictional force. c. inertia. b. weight. d. mass.
b - weight
A crate is released on a frictionless plank inclined at an angle ? with respect to the horizontal. Which of the following relationships is true? (Assume that the x-axis is parallel to the surface of the incline.)
a. Fy = Fg
c. Fy = Fx
b. Fx = 0
d. none of the above
D- none of the above
Which statement about the acceleration of an object is correct?
a. The acceleration of an object is directly proportional to the net external force acting on the object and inversely proportional to the mass of the object.
b. The acceleration of an object is directly proportional to the net external force acting on the object and directly proportional to the mass of the object.
c. The acceleration of an object is inversely proportional to the net external force acting on the object and inversely proportional to the mass of the object.
d. The acceleration of an object is inversely proportional to the net external force acting on the object and directly proportional to the mass of the object.
a - the acceleration of an object is directly proportional to the net external force acting on the object and inversely proportional to the mass of the object.
A force is a ____________ quantity.
Vector (magnitude and direction)
What is Newton's law of Sunday?
