Matching
|
|
|
Match each item with the correct statement below concerning STANDARD SI
units. a. | kelvin | f. | kilometer | b. | celsius | g. | minute | c. | gram | h. | second | d. | kilogram | i. | watt | e. | meter | j. | joule |
|
|
|
1.
|
SI unit of time
|
|
|
2.
|
SI unit of length
|
|
|
3.
|
SI unit of temperature
|
|
|
4.
|
SI unit of mass
|
|
|
5.
|
SI unit for energy
|
True/False
Indicate whether the statement is true or
false.
|
|
|
6.
|
Exponents must match when adding or subtracting numbers in scientific
notion.
|
|
|
7.
|
In most line graphs, the dependent variable is placed along the X-axis.
|
|
|
8.
|
If you were trying to get out of the way of a storm, you would need to know the
speed at which it was moving.
|
|
|
9.
|
Acceleration occurs when velocity changes.
|
|
|
10.
|
If one toy car is traveling at 10 cm/s and another toy car is moving at 10 cm/s
in the opposite direction, both cars have the same velocity.
|
|
|
11.
|
A straight line on an acceleration graph indicates constant speed.
|
|
|
12.
|
A straight, slanted line on a graph of distance versus time means that
the object has zero acceleration..
|
|
|
13.
|
A single point on a speed graph give instantaneous speed.
|
Multiple Choice
Identify the choice that best completes the
statement or answers the question.
|
|
|
14.
|
How is 0.00099 written in scientific notation?
a. | 99 ´ 10–5 | b. | 9.9 ´ 10–4 | c. | 0.99 ´ 10–3 | d. | 9.9 ´ 104 |
|
|
|
15.
|
There are 1660 megawatts of wind-generated electricity produced globally every
year. This amount is equivalent to
a. | 1,660,000 watts | c. | 16,600,000 watts | b. | 1,660,000 kilowatts | d. | 166,000
kilowatts |
|
|
|
16.
|
The diameter of a carbon atom is 0.000 000 000 154 m. What is this number
expressed in scientific notation?
|
|
|
17.
|
What is the quantity 0.0075 meters expressed in centimeters?
a. | 0.075 cm | b. | 0.75 cm | c. | 7.5 cm | d. | 70.5
cm |
|
|
|
18.
|
The expression of 3585 km in scientific notation is ____.
|
|
|
19.
|
THIS PROBLEM IS FIXED NOW!MULTIPLY 4.0 
10  m and 8.0  10  m using PROPER scientific notation.
a. | 0.32  100 | b. | 0.32 | c. | 3.2  10 | d. | 3.2 
10-1 |
|
|
|
20.
|
How many meters are there in 1,865 cm?
a. | 0.1865 | b. | 1.865 | c. | 18.65 | d. | 186.5 |
|
|
|
21.
|
The symbol mm represents a
a. | micrometer. | b. | millimeter. | c. | megameter. | d. | manometer. |
|
|
|
22.
|
The radius of Earth is 6 370 000 m. Express this measurement in km in scientific
notation.
|
|
|
23.
|
The Greek letter D (delta) indicates
a(n)
a. | difference or change. | c. | direct proportion. | b. | sum or total. | d. | inverse
proportion. |
|
|
|
24.
|
If you ride your bicycle down a straight road for 500 m then turn around and
ride back, your distance is ____ your displacement.
a. | greater than | c. | less than | b. | equal to | d. | can’t
determine |
|
|
|
25.
|
The speed you read on a speedometer is ____.
a. | instantaneous speed | c. | average speed | b. | constant speed | d. | velocity |
|
|
|
26.
|
3 m/s north is an example of a(n) ____.
a. | speed | b. | velocity | c. | position | d. | acceleration |
|
|
|
27.
|
A merry-go-round horse moves at a constant speed but at a changing ____.
a. | velocity | c. | inertia | b. | dimension | d. | none of the
above. |
|
|
|
28.
|
Acceleration is rate of change of ____.
a. | position | b. | time | c. | velocity | d. | force |
|
|
|
29.
|
A horizontal line on a velocity/time graph shows ____ acceleration.
a. | positive | b. | negative | c. | changing | d. | zero |
|
|
|
30.
|
What is the speed of an object at rest?
a. | 0.0 m/s | b. | 1.0 m/s | c. | 9.8 m/s | d. | 9.81
m/s |
|
|
|
|
|
|
31.
|
According to the graph above, during which interval is the cat at rest?
a. | 0.0–5.0 s | c. | 10.0–15.0 s | b. | 5.0–10.0 s | d. | 15.0–20.0
s |
|
|
|
32.
|
According to the graph above, the cat has a negative slope during which
interval?
a. | 0.0–5.0 s | c. | 10.0–15.0 s | b. | 5.0–10.0 s | d. | 10.0–20.0
s |
|
|
|
33.
|
According to the graph above, during which interval does the cat have the
greatest velocity?
a. | 0.0–5.0 s | c. | 10.0–15.0 s | b. | 5.0–10.0 s | d. | 15.0–20.0
s |
|
|
|
34.
|
Which of the following line segments on a position versus time graph is
physically impossible?
a. | a horizontal line | c. | a straight line that slopes to the right | b. | a straight line that
slopes to the left | d. | a
vertical line |
|
|
|
35.
|
A train that travels 100 kilometers in 4 hours is traveling at what average
speed?
a. | 50 km/h | b. | 100 km/h | c. | 2 km/h | d. | 25
km/h |
|
|
|
36.
|
In graphing motion, the steepness of the slope depends on
a. | how quickly or slowly the object is moving. | b. | how far the object
has moved. | c. | when the object began moving. | d. | the direction the object is
moving. |
|