Week 8 Dynamics (Newton 2nd And 3rd) Question Preview (ID: 62946)
Week 8 Review Of Newton's 2nd And 3rd Laws.
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A net force on an object causes it to _____ in the direction of that net force.
a) disintegrate
b) levitate
c) remain stationary
d) accelerate
Force is a vector, having magnitude and a ______.
a) direction
b) quantity
c) unit
d) speed
A force is a push or pull, or any ____ that has the ability to change motion.
a) work
b) power
c) action
d) machine
The kilogram (kg) is the unit of mass in _____.
a) biology
b) physics
c) motion
d) acceleration
Acceleration: Meters per second squared, or m/s/s (m/s2) is the unit of acceleration. This is a measure of how much faster an object will move every ____ in a direction.
a) second
b) hour
c) way
d) day
One _____ is the force required to accelerate one kilogram of mass by one meter per second squared.
a) Joule
b) Watt
c) Volt
d) Newton
In the second law of motion, when force goes up _____ goes up.
a) work
b) acceleration
c) power
d) inflation
Acceleration = Force รท mass. Since force is the _______ in the fraction, when it goes up the acceleration must also go up by the same amount.
a) denominator
b) numerator
c) constant
d) coefficient
In the second law of motion, when mass goes up acceleration goes down. In other words: acceleration is cut in half when ____ doubles.
a) mass
b) time
c) circumference
d) volume
A ___ diagram is a list of all the forces represented by arrows on an object.
a) mass
b) volume
c) position-time
d) force
The size of the arrow in a free-body diagram reflects the ____ of the force.
a) time
b) magnitude
c) temperature
d) subtraction
For a force on an object, there is an equal and opposite force. This statement best describes:
a) Newton's first law of motion.
b) Newton's second law of motion.
c) Newton's third law of motion.
d)
Mass is a amount of matter in an object. This is not affected by ___.
a) gravity
b) matter
c) number of atoms in the object
d)
Weight is a measure of the ____ of gravity on an object's mass.
a) force
b) power
c) subtraction
d) elimination
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