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U8 Review - Motion Flashcards | StudBud
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U8 Review - Motion
U8 Review - Motion
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1
\frac{Y}{X}=ZIn this problem X is in a denominator. How do you get X out of the denominator?
Multiply both sides by Y
Divide both sides by Y
Divide both sides by X
Multiply both sides by X
2
P\left(ower\right)=\frac{W\left(ork\right)}{T\left(ime\right)}What is W(ork) equal to?
W=\frac{T}{P}
W=P\cdot T
W=P+T
W=\frac{P}{T}
3
Which of the following is a velocity?
9.8 meter per second squared
9.8 meters per second
9.8 newtons toward earth
9.8 meters per second toward earth
4
On this distance time graph, the line shows an object that is..
moving and speeding up
moving and slowing down
not moving
moving at a constant speed
5
Because physics studies laws that apply to all other branches of science, it is called...
The philosophy of science
The fundamental science
The science of everything
The science of life
6
It is IMPOSSIBLE to study physics without studying math.
True
False
7
If I takes me 9 hours to make a 450 mile trip, what is my speed?
4,050 miles per hour
450 miles per hour
50 miles per hour
60 miles per hour
8
S=\frac{D}{T}What is D equal to?
D=\frac{S}{T}
D=S\cdot T
D=S+T
D=\frac{T}{S}
9
If I combine the vectors "10 mph north" and "20 mph south" what is my resultant vector?
20 mph south
30 mph south
10 mph south
10 mph north
10
What is displacement?
The length of a path travelled by an object
An object's speed and the direction it is going
The ratio of an object's distance travelled and elapsed time
The length and direction of a straight line between begin and end points
11
If I walk 3 steps forward and 2 steps backward, what is my distance travelled and displacement?
Distance is 2 backward, displacement is 3 forward
Distance is 1, displacement is 3 forward
Distance is 5 forward, displacement is 1
Distance is 5, displacement is 1 forward
12
X\cdot Y=Z, what operation would you need to do to isolate X?
Subtract Y on both sides
Multiply by X on both sides
Divide by Z on both sides
divide by Y on both sides
13
If time is in seconds, and distance in meters, calculate the speed between 2 and 3 seconds with points (2,7) and (3,10)
3.33 meters per second
3 meters per second
1 meter per second
0.33 meters per second
14
Physics is the study of...
Different types of substances
matter, energy, and their interactions
machines
matter and living organisms
15
Select which two types of measurements are considered scalars.
velocity and distance
speed and displacement
speed and distance
velocity and displacement
16
Using this displacement-time graph, at what period of time is the object
not moving
, and
behind
the starting position?
between 2 and 4 seconds
between 4 and 5 seconds
between 0 and 2 seconds
Between 6 and 8 seconds
17
Speed is 40 miles per hour. Time is 4 hours. What is the distance traveled?
10 miles
4 miles
0.1 miles
160 miles
18
\frac{Y}{X}=Z Which other equation is a rearranged version of this equation?
Y=\frac{Z}{X}
Y=\frac{X}{Z}
Y=Z\cdot X
Z=Y\cdot X
19
If I have a vector going
north
and a vector going
east
, how do I determine the
magnitude
of the resultant vector?
Divide the larger magnitude by the smaller magnitude
Use pythagorean theorem--> result magnitude = \sqrt{M1^2+M2^2}
Add the magnitudes
Subtract the larger magnitude from the smaller magnitude
20
If you wanted to calculate the speed between 2 and 3 seconds, what two points would you select?
(2, 0) (3, 1)
(2, 7) (3, 10)
(2, 2) (3, 3)
(0, 2) (0, 3)
21
Which branch of science studies light?
Mechanics
Optics
Thermodynamics
Acoustics
22
Y=Z\cdot X Which equation is equivalent to this equation and also has X isolated?
\frac{Y}{X}=Z
\frac{Y}{Z}=X
Y\cdot Z=X
\frac{Z}{Y}=X
