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WorksheetsTopic 3. Matter and Energy I.
Total questions: 13
Worksheet time: 9mins
A scalar quantity is a magnitude that just considers...
direction and sense
unit and direction
sense and a number
a number and a unit
What are examples of scalar quantities?
Speed
Velocity
Distance
Displacement
If this morning you left home to go to the school, and in the afternoon you got back... What was your displacement? The distance between your home and school is 10 km.
0 km
10 km
Today I got virtual classes
20 km
A plane has a displacement of 30 miles at 28° to the southwest. What's its position using cardinal coordinates?
First Quadrant
x= +
y= +
Second Quadrant
x= -
y= +
Third Quadrant
x= -
y= -
Fourth Quadrant
x= +
y= -
In what quadrant the value of x is negative, while y is positive?
Quadrant I
Quadrant II
Quadrant III
Quadrant IV
The standard form for 45⋅10−3
(a)
What's the standard 93⋅106
(a)
What prefix replaces 10−6
μ (micro)
η (nano)
θ (tetha)
G (giga)
What prefix replaces 109
k (kilo)
M (mega)
G (giga)
T (tera)
The 96⋅10−9 g can be rewritten like:
96 dg
96 mg
96 μg
96 ηg
What elements define a Vector?
Magnitude
Rightwards and Leftwards
positive and negative
Sense
Direction
The next values are VECTORS, but what of them will be considered in this course?
Electromagnetism
Force
Velocity
Acceleration
Momentum
In the imaging systems the frequency of common use is given by X-Rays; but the intrinsically safe Terahertz technology offers a new option.
In what range this new frequency works?
(0.3 ∼10)⋅109 Hertz
(0.3 ∼10)⋅1012 Hertz
(0.3 ∼10)⋅106 Hertz
(0.3 ∼10)⋅1015 Hertz
