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WorksheetsCBE Physics
Total questions: 50
Worksheet time: 3hrs 19mins
Name
Class
Date
1.
What information does a velocity give that a speed does not give?
a)
rate of change of distance
b)
direction
c)
units of measurement such as km/h or mi/h
d)
how fast something travels
2.
If the velocity of an object is constant, its acceleration have to be .................
a)
constant
b)
zero
c)
increase
d)
decrease
3.
A cheetah can accelerate from rest to a speed of 30.0 m/s in 7.00 s. What is its acceleration?
a)
4.29 m/s3
b)
4.29 m/s2
c)
4.29 m/s1
d)
4.29 m/s
4.
The two measurements necessary for calculating average speed are
a)
Acceleration and time
b)
Velocity and time
c)
Distance and time
d)
Distance and acceleration
e)
Velocity and distance
5.
Wind blowing at 20 mph.Vector or scalar?
a)
Scalar
b)
Vector
6.
30 m/sec, East. Scalar or Vector
a)
Scalar
b)
Vector
c)
Neither
7.
Scott travels north 5 miles and then goes west 3 miles before coming straight back south 2 miles. What is his distance?
a)
10 miles
b)
7 miles
c)
8 miles
d)
6 miles
8.
Amy runs 2 miles south, then turns around and runs 3 miles north. What is displacement?
a)
5 miles
b)
1 mile
c)
2 miles south
d)
1 mile north
9.
Ray runs 30 feet north, 30 feet west, and then 30 feet south. What is the displacement?
a)
30 feet west
b)
90 feet
c)
30 feet south
d)
0 feet
10.
What is magnitude?
a)
The direction that describes a quantity.
b)
A numerical value
c)
A unit of force
11.
A quantity that has both magnitude and direction is called a scalar quantity.
a)
True
b)
False
12.
Jermaine runs exactly 2 laps around a 400 meter track. What is the displacement?
a)
800
b)
400
c)
0
d)
200
13.
A box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest. Find the acceleration.
a)
30 m/s
b)
24 m/s2
c)
9 m/s2
d)
81 km/hr
14.
The picture of the position vs. time graph shows an object that is...
a)
accelerating/speeding up
b)
moving at a constant speed
c)
not moving
d)
accelerating/slowing down.
15.
A runner races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?
a)
10 m/s
b)
1000 m/s
c)
100 seconds
d)
10 seconds
16.
What does this graph represent?
a)
Constant Speed
b)
Acceleration
c)
Not moving
17.
This is a velocity-time graph. What is the object doing in segment A?
a)
Positive acceleration
b)
Negative acceleration
c)
Constant Velocity
d)
Not moving
18.
This is a velocity-time graph. What is the object doing in segment B?
a)
Positive acceleration
b)
Negative acceleration
c)
Constant Velocity
d)
Not moving
19.
What is the velocity of a ball that has been dropped off a cliff after 1 , 2, 3, 4, and 5 seconds? (assume g is rounded to 10 m/s2)?.
a)
10, 20, 30, 40, 50 m/s
b)
5, 10, 15, 20, 25 m/s
c)
5, 20, 45, 80,125 m
d)
10,10,10,10,10 m/s
20.
A ball is thrown upward in the air with an initial velocity of 40 m/s. How long does it take to reach back to the point it was thrown from?
a)
4 seconds
b)
2 seconds
c)
6 seconds
d)
8 seconds
21.
If a freely falling object were somehow equipped with a speedometer, its speed reading would increase each second by
a)
about 5 m/s.
b)
about 10 m/s.
c)
about 15 m/s.
d)
a rate that depends on its initial speed.
22.
1. An object free falls for 3.5 seconds. How far does it fall?
a)
120.05 m
b)
17.15 m
c)
60.03 m
d)
34.3 m
23.
If you throw a baseball straight up, what is its velocity at the highest point?
a)
9.8 m/s2
b)
9.8 m/s
c)
0 m/s2
d)
0 m/s
24.
A roller coasters accelerates from an initial speed of 6.0 m/s to a final speed of 70 m/s over 4 seconds. What's the acceleration?
a)
24 m/s2
b)
18 m/s2
c)
16 m/s2
d)
16 m/s
25.
The SI unit for acceleration is
a)
mph
b)
ft/sec2
c)
m/s2
26.
A dog runs with an initial speed of 7.5 m/s on a waxed floor. It slides to a stop in 15 seconds. What is the acceleration?
a)
-7.5 m/s
b)
-7.5 m/s2
c)
-0.5 m/s2
d)
7.5 mi//hr
27.
A dog basks in the sun when he sees a squirrel and bolts after it. If the dog accelerates at +1.6 m/s/s, how far does he run in 3 seconds?
a)
4.8 meters
b)
45 meters
c)
1.6 meters
d)
7.2 meters
28.
A golf ball is dropped from the top of the bleachers 11 meters from the ground. Determine the final speed of the ball just before it hits the ground.
a)
6 m/s
b)
9 m/s
c)
12 m/s
d)
15 m/s
29.
Sam jumped from a plane. His acceleration was -9.8m/s/s. He hit the ground in 30 seconds. What was his velocity just before he hit the ground?
a)
294 m/s
b)
0.32 m/s
c)
-294 m/s
d)
3.1 m/s
30.
An object with an initial velocity of 3.50 m/s moves east along a straight and level path. The object then undergoes a constant acceleration of 1.80 m/s2 east for a period of 5.00 s. How far does the object move while it is accelerating?
a)
6.30 m
b)
17.5 m
c)
27.2 m
d)
40.0 m
31.
An automobile with a Vi of 4.30m/s accelerates at a rate of 3.00 m/s/s. Find the Vf after 5.00 s.
a)
19.3m/s
b)
-44.7m/s
c)
15m/s
d)
0 m/s
32.
A bird falls out of the sky and hits the ground after 11s (he's ok). His Vi was 2m/s. How far down did he fall?
a)
-570.9m
b)
-11m
c)
11m
d)
-9.8m
33.
Which statement describes a vector?
a)
It has magnitude but no direction
b)
It has direction but no magnitude
c)
It has both direction and magnitude
d)
It has constant magnitude but no
direction
direction
34.
Find the component form of a vector whose initial point is (5, 7) and terminal point is (1, 10)
a)
<-4, 3>
b)
<4, -3>
c)
5
d)
<6, 17>
35.
In practice A of the figure, What is the magnitude of the resultant displacement?
a)
5 km
b)
8 km
c)
11 km
d)
15 km
36.
Given u = <3, 7> and v =<-5, 4>, find 2u - 3v
a)
<21, 2>
b)
<-11, 26>
c)
<8, 3>
d)
23
37.
Find the magnitude of the vector <5, 5>
a)
0
b)
10
c)
25
d)
7.07
38.
Find the direction angle for the vector <2, 7>
a)
74.05°
b)
15.95°
c)
195.94°
d)
97.28°
39.
Find the magnitude of the vector <0, -9>
a)
9
b)
3
c)
-9
d)
<0, 1>
40.
How would you write 4.3756 x 104 in standard form?
a)
437,560,000
b)
0.00043756
c)
43,756
d)
4,3756
41.
How would you write 0.0005 in scientific notation?
a)
50 x 105
b)
5 x 104
c)
5 x 103
d)
.5 x 103
42.
UNDERSTANDING
If the exponent is a positive number...
If the exponent is a positive number...
a)
you will get a large number
b)
you will get a smaller number
43.
UNDERSTANDING
If the exponent is a negative number...
If the exponent is a negative number...
a)
you will get a large number
b)
you will get a small number
44.
How many minutes are in a year?
a)
I can't count that high.
b)
525,600min
c)
52,560min
d)
31,536,000min
45.
How many seconds are in a day?
a)
There are only seconds in a minute.
b)
1440sec
c)
86,400sec
d)
84,600sec
46.
m stands for....
a)
millimeter
b)
meter
c)
centimeter
d)
Liter
47.
convert 9 km to mm
a)
900,000
b)
9,000,000
c)
9,000
d)
90,000
48.
A bicycle has a speed of 6 m/s. What is its speed in km/h? (1 km=1000 m)
a)
21.6 km/h
b)
16.67 km/h
c)
2.16 km/h
d)
1.67 km/h
49.
A passenger jet has a speed of 900 km/h.
What is its speed in m/s?
(1 km = 1000 m)
What is its speed in m/s?
(1 km = 1000 m)
a)
250 m/s
b)
324 m/s
c)
1,500 m/s
d)
2,500 m/s
50.
The technique of converting between measurements is called dimensional analysis.
a)
True
b)
False
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