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Math of Mechanics Test

Enter the letter for the matching Answer
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1.
Be able to calculate using the formula for momentum
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2.
Define Displacement
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3.
Average speed
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4.
Deceleration
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5.
Advanced only: Relate Impulse to momentum
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6.
State Newton’s Second Law of Motion
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7.
State Newton’s First Law of Motion
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8.
What does a scalar quantity tell us?
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9.
What does a vector quantity tell us?
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10.
Advanced only: What is Impulse?
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11.
What are some other vector quantities?
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12.
Be able to calculate using the formula for Force
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13.
Which of these quantities is a vector quantity, Speed or velocity?
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14.
How do we calculate it?
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15.
Advanced only: How does this relate to building safer cars?
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16.
Which of these quantities is a scalar quantity, distance or displacement?
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17.
What are 5 differences between mass and weight?
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18.
What did Galileo determine about the rate of falling objects?
A.
All objects fall at the same rate if there is little or no air resistance
B.
Scalar quantities tell size OR magnitude of the thing measured
C.
When an unbalanced force acts on an object it accelerates
D.
Negative acceleration or speed that is decreasing/slowing down
E.
Velocity is vector; speed is scalar
F.
F = m* a
G.
Distance is scalar; displacement is vector
H.
p(momentum) = m(ass) * v(elocity)
I.
p = m * v
J.
Acceleration, force, and momentum
K.
Distance and direction of an object from its starting point
L.
When there is no unbalanced force on an object, objects at rest stay at rest and objects moving keep moving at the same speed in the same direction
M.
A vector quantity has both magnitude and direction.
N.
Impulse is equal to the change in momentum.
O.
Force times time equals impulse
P.
When momentum changes quickly, Force can be minimized by extending the time it acts. Air bags, seat belts, and bumpers which crumple all work to allow extra time between the Force and its impact in a collision.
Q.
Mass is the amount of matter in something and weight is the pull of gravity. Mass is measure on a balance in g or kg and weight is measured on a spring scale in N. Mass cannot change or be zero and weight can.
R.
The average over time when speed is changing
Type the Answer that corresponds to the displayed Question.
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19.
What is the acceleration of gravity at the earth’s surface?
Type the Question that corresponds to the displayed Answer.
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20.
Speed that is increasing or getting faster
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21.
Speed at any given moment in time like on your speedometer in the car
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22.
the study of motion
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23.
Any push or pull on an object
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24.
Speed that is not changing or is staying the same
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25.
The distance an object moves per unit of time
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26.
Distance and direction an object moves per unit of time
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27.
Momentum is the product of mass and velocity
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28.
How far an object has moved

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Created by: judi829
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