_________________ is a big word that means things are moving.
A. Motion
B. Whoa Nelly
C. Acceleration
A. Motion
Rotation rate is a measure of how many times an object ______________.
A. flies
B. hops
C. rotates
C. rotates
_____________ invented an important mathematical method called Calculus.
A. Fred Flinstone
B. Isaac Newton
C. Abraham Lincoln
B. Isaac Newton
A ________________ is an object in motion that will not be accelerated further, except by the force of gravity.
A. Newton
B. projectile
C. large pizza
B. projectile
We can say that momentum is the ________________ of an object that is moving to continue moving.
A. tendency
B. reluctance
C. importance
A. tendency
Any object in motion (such as a person, a car, a ball, etc.) will have a ______________ point and a _____________ point.
A. big/little
B. starting/finishing
C. high/low
B. starting/finishing
______________ is short for revolutions per minute.
A. AM
B. RPM
C. PM
B. RPM
Newton's First Law states that an object that isn't moving at all will stay in that condition unless some ____________ is applied to that object.
A. force
B. cheese
C. gravity
A. force
Projectiles, once thrown, hit, or otherwise launched, will eventually fall back to ________________.
A. Mars
B. the moon
C. Earth
C. Earth
The two factors that define momentum are the ________________ of the object and the ________________ of the object in motion.
A. size/weight
B. speed/mass
C. cost/price
B. speed/mass
An instantaneous speed is the ____________ of an object at a given instant.
A. force
B. acceleration
C. speed
C. speed
The _______________ is the time it takes for a rotating object to complete one single revolution.
A. speed
B. period
C. vacation
B. period
Newton's Second Law states that when a force is applied to an object, it will _______________.
A. stop
B. fall
C. accelerate
C. accelerate
Once a projectile is launched (accelerated), the forward _______________ achieved by the projectile will not increase.
A. speed
B. work
C. timing
A. speed
A. socks
B. direction
C. momentum
C. momentum
Average _______________ is the rate at which an object goes from a starting point to a finishing point.
A. speed
B. grade
C. score
A. speed
The speed of an object _____________ in a circle is another measure of importance in circular motion.
A. traveling
B. accelerating
C. dancing
A. traveling
Newton's Third Law states that when one object applies a force to a second object, the second object applies an ______________ force back to the first object.
A. equal
B. mean
C. gravitational
A. equal
The distance a projectile travels depends on three factors: the speed achieved by the projectile, the force of gravity, and the ________________ at which the projectile was launched.
A. target
B. time
C. angle
C. angle
The _______________ of momentum of an object is equal to the speed of the object multiplied by the mass of the object.
A. amount
B. importance
C. change
A. amount
Acceleration is a measure of how fast an object changes ______________.
A. socks
B. speed
C. direction
B. speed
A. square
B. triangle
C. circle
When a rocket engine fires, the air actually ________________ against the thrust of the rocket.
A. pulls back
B. files a lawsuit
C. pushes back
C. pushes back
Trajectory is defined as the path of a _______________.
A. cheese pizza
B. projectile
C. proton
B. projectile
A bullet has a lot of momentum because of its _________________.
A. size
B. speed
C. temperature
B. speed