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Unti 2-2D Motion Review

Total questions: 94

Worksheet time: 6hrs 56mins

Name
Class
Date
1.
The horizontal component of a projectile's velocity is independent of...
a)
it's range
b)
time
c)
the vertical component
d)
none of these
2.
In the absence of air friction, the vertical component of a projectile's velocity doesn't change as the projectile moves. 
a)
True
b)
False
c)
Sometimes true
d)
Sometimes false
3.
In the absence of air friction, the horizontal component of a projectile's velocity doesn't change as the projectile moves. 
a)
True
b)
False
c)
Sometimes true
d)
Sometimes false
4.
In the absence of air resistance, the angle at which a thrown ball will go the farthest is
a)
15o
b)
300
c)
45o
d)
600
5.
What is the resultant of a 3-unit vector and a 4-unit vector at right angles to each other? 
a)
1
b)
5
c)
7
d)
9
6.
At the instant a ball is thrown horizontally with a large force, an identical ball is dropped from the same height. Which ball hits the ground first? 
a)
Neither- they hit at the same time
b)
the horizontally thrown ball
c)
the dropped ball
d)
None of these
7.
What is the vertical acceleration of a projectile?
a)
0 m/s2
b)
9.8 m/s2
8.
Two objects - one with mass m and the other with mass 2m - are released from rest at the same height. Which object hits the ground first?
a)
mass m
b)
mass 2m
c)
both objects hit the ground at the same time
d)
unable to determine with information given
9.
An object is shot directly upward from the ground. T1 represents the time it takes to reach the maximum height. T2 represents the time it takes to travel from the maximum height to the ground.
a)
T1 = T2
b)
T1 < T2
c)
T1 > T2
d)
unable to determine
10.
An object is shot directly upward from the ground. v1 represents the initial upward velocity. v2 represents the velocity right before impact.
a)
v1 = v2
b)
v1 < v2
c)
v1 > v2
d)
unable to determine
11.
A ball is thrown into the air. At the highest point, the ball has zero velocity and zero acceleration.
a)
True
b)
False
12.
A projectile is fired straight upward at 100 m/s. How fast is it moving at the instant it reaches the top of its trajectory?
a)
- 9.8 m/s
b)
0 m/s
c)
9.8 m/s
d)
19.6 m/s
13.
In the absense of air resistance, as an object travels through the air, its horizontal velocity
a)
changes continuously
b)
not enough information
c)
remains the same
14.

What is the value of the angle t? (tan-1)

a)

27

b)

31

c)

38

d)

43

15.
Which of the following would NOT be considered a projectile? 
a)
a cannonball thrown straight up
b)
a cannon ball rolling down a slope
c)
a cannonball rolling off a table
d)
a cannonball thrown in the air
16.
A person begins a corn maze by walking 6.00m to the East and 10.0m to the North. How far away is the person from the starting position?
a)
10.4 m North-East
b)
11.7 m North-East
c)
16.0 m North-East
d)
16.8 m North
17.

A vector is a ray with both ____________ and _____________.

a)

Wings and halos

b)

Space and time

c)

Direction and magnitude

d)

Radicals and exponents

18.
A car moved 60 km East and 90 km West. What is the displacement and the direction?
a)
30 km, West
b)
60 km. East
c)
90 km
d)
150 km
19.
Find the length of the missing side. 
a)
17 cm
b)
22 cm
c)
15 cm
d)
13 cm
20.
Which side is adjacent to the 400 angle?
a)
AB
b)
AC
c)
BC
21.
You need a ladder that will reach up a 25 foot tall house when placed 10 feet away from the house. How tall does the ladder need to be?
a)
25 feet
b)
26 feet
c)
27 feet
d)
28 feet
22.
solve for the value of y
a)
13
b)
5
c)
23
d)
10
23.

Solve for the missing angle. Round the nearest degree. (tan-1)

a)

50

b)

1

c)

37

d)

95

24.
When launched at the same velocity, which angle produces the greatest height?
a)
45 degrees
b)
90 degrees
c)
30 degrees
d)
60 degrees
25.
When launched at the same velocity, which angle produces the greatest time in the air?
a)
45 degrees
b)
90 degrees
c)
30 degrees
d)
60 degrees
26.
What is the vertical acceleration of a projectile at its highest point?
a)
9.81 m/s2
b)
-9.81 m/s2
c)
0.0 m/s2
d)
45 m/s2
27.
What happens to the magnitude of the horizontal velocity of a projectile throughout its flight?
a)
decreases, then increases
b)
increases, then decreases
c)
remains the same
d)
decreases
28.
What happens to the magnitude of the vertical velocity of a projectile throughout its flight?
a)
decreases, then increases
b)
increases, then decreases
c)
remains the same
d)
decreases
29.
What happens to the magnitude of the acceleration of a projectile throughout its flight?
a)
decreases, then increases
b)
increases, then decreases
c)
remains the same
d)
decreases
30.
Ball A is rolled horizontally at 20 m/s from the top of a cliff.  Ball B is rolled horizontally at 30 m/s from the same cliff.  Compared to the time of flight and horizontal distance of ball A, ball B experiences a
a)
greater time of flight and greater horizontal distance
b)
greater time of flight and shorter horizontal distance
c)
equal time of flight and greater horizontal distance
d)
equal time of flight and shorter horizontal distance
31.
Acceleration is a _______ quantity.
a)
scalar
b)
vector
32.
Speed is a _______ quantity.
a)
scalar
b)
vector
33.
Velocity is a _______ quantity.
a)
scalar
b)
vector
34.
The vertical and horizontal distances traveled by a projectile are both ______ when considering air resistance.
a)
less
b)
greater
c)
equal
35.
Determine the initial velocity for an object launched with an initial horizontal component of 9.0 m/s and an initial vertical component of 7.5 m/s.
a)
11.7 m/s
b)
16.5 m/s
c)
8.3 m/s
d)
1.5 m/s
36.
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
37.
The _______ of two or more vectors is the sum of the vectors.
a)
components
b)
scalar
c)
resultant
d)
magnitude
38.
If a boomerang is thrown 20 m in a straight line and returns exactly to the spot it was thrown what is its displacement?
a)
20m
b)
40m
c)
0m
d)
-20m
39.
A car moved 60 km East, then 90 km East. What is the displacement it traveled?
a)
30 km, West
b)
60 km. East
c)
150 km West
d)
150 km East
40.
What is the total displacement?
100 m/s        230 m/s
<------        --------->
a)
30 m/s to the right
b)
230 m/s to the right
c)
130 m/s to the right
d)
This is a balanced force
41.
The Pythagorean Theorem states that you can find Length of the Hypotenuse of a right triangle by finding the ...
a)
square root of the sum of the squares of the other two sides
b)
sum of the squares of the other two sides
c)
sum of the other two sides
d)
Inverse Tangent of the ratio of the other two sides
42.
One way to write the Pythagorean Theorem is ... 
a)
a + b = c
b)
a2 + b2 = c
c)
a2 + b2 = c2
d)
a2 * b2 = c2
43.
In practice B of the figure, which displacement is the horizontal component?
a)
30 km, East
b)
30 km, West
c)
40 km, North
d)
40 km, South
44.
In practice B of the figure, which displacement is the vertical component? 
a)
40 km, South
b)
40 km, North
c)
30 km, East
d)
30 km, West
45.
An airplane traveling north at 220 meters per second encounters a 50.0-meters-per-second crosswind from west to east. 
a)
170 m/s
b)
214 m/s
c)
226 m/s
d)
270 m/s
46.
An object that is launched into the air.
a)
Drag
b)
Mass, with units
c)
Apogee
d)
Projectile
47.
The path that a projectile follows.
a)
Delta
b)
Trajectory
c)
Tension
d)
Drag
48.

The U-shaped path a projectile follows.

a)

Vertical

b)

Horizontal

c)

Parabola

d)

Drag

49.

-9.8m/s2

a)

Magnitude

b)

Acceleration due to gravity

c)

Displacement

d)

Speed

50.

Motion along the x-axis

a)

Delta

b)

Trajectory

c)

horizontal

d)

vertical

51.

Motion along the y-axis

a)

Acceleration

b)

sideways

c)

horiztontal

d)

vertical

52.
Object falling near Earth's surface at acceleration due to gravity.
a)
Gravity
b)
Parabola
c)
Free fall
d)
Apogee
53.
If a bullet is horizontally shot at the same moment another bullet is dropped from the same height, which will hit the ground first?
a)
Shot Bullet
b)
Dropped Bullet
c)
Hit at Same Time
54.
A ball is thrown horizontally at a height of 2.2 meters at a velocity of 65 m/s. Assume no air resistance. How far did the ball travel horizontally when it hit the ground? 
a)
14 m
b)
30 m
c)
65 m
d)
43 m
55.
A bullet is fired horizontally at a height of 1.3 meters at a velocity of 950 m/s. Assume no air resistance. How long until the bullet reaches the ground?
a)
0.52 s
b)
0.27 s
c)
0.13 s
d)
0.36 s
56.
A stone is thrown horizontally with an initial speed of 10 m/s from a bridge. If air resistance could be ignored, how long would it take the stone to strike the water 80 m below the bridge?
a)
1 s
b)
2 s
c)
4 s
d)
8 s
57.
A ball is thrown horizontally at a height of 2.2 meters at a velocity of 65 m/s. Assume no air resistance. How far did the ball travel horizontally when it hit the ground? 
a)
14 m
b)
30 m
c)
65 m
d)
43 m
58.

Which of the following statements are TRUE about the horizontal motion of a projectile?

a)

Projectiles have a constant horizontal velocity.

b)

Projectiles have a constant non-zero horizontal acceleration.

c)

The horizontal velocity of a projectile is unaffected by the vertical velocity; these two components of motion are independent of each other.

d)

The final horizontal velocity of a projectile is always equal to the initial horizontal velocity.

e)

As a projectile rises towards the peak of its trajectory, the horizontal velocity will decrease.

59.
A bullet is fired horizontally at a height of 1.3 meters at a velocity of 950 m/s. Assume no air resistance. How long until the bullet reaches the ground?
a)
0.52 s
b)
0.27 s
c)
0.13 s
d)
0.36 s
60.
A ball is thrown horizontally at a height of 2.2 meters at a velocity of 65 m/s. Assume no air resistance. How far did the ball travel horizontally when it hit the ground?
a)
14.3 m
b)
30.55 m
c)
65 m
d)
43.55 m
61.

Observers using different ___________________ may measure different velocities for an object in motion

a)

frame of reference

b)

relatives of motion

c)

projectile motions

d)

constant velocity

62.

If a car passes you going 90 km/hr north while you are driving 80 km/hr north, how far is the car moving relative to your car

a)

170 km/hr

b)

90 km/hr

c)

80 km/hr

d)

10 km/hr

63.

A boat heading north crosses a wide river

with a velocity of 10.00 km/h relative to the water. The river has a uniform velocity of 5.00 km/h due east. Determine the boat’s speed with respect to an observer on shore.

a)

11.18 km/hr

b)

15 km/hr

c)

5 km/hr

d)

30 km/hr

64.

A passenger at the rear of a train traveling at 15 m/s relative to Earth throws a baseball with a speed of 15 m/s in the direction opposite the motion of the train.

What is the velocity of the baseball relative to Earth as it leaves the thrower’s hand?

a)

30 m/s

b)

15 m/s

c)

0 m/s

d)

20 m/s

65.

A spy runs from the front to the back of an aircraft carrier at a velocity of 3.5 m/s. If the aircraft carrier is moving forward at 18.0 m/s, how fast does the spy appear to

be running when viewed by an observer on a nearby stationary submarine?

a)

14.5 km/hr

b)

14.5 m/s

c)

21.5 m/s

d)

63 m/s

66.

A woman on a ten-speed bicycle travels at 9 m/s relative to the ground as she passes a little boy on a tricycle going in the opposite direction. If the boy is traveling at 1 m/s relative to the ground, how fast does the boy appear to be moving relative to the woman?

a)

9 m/s

b)

8 m/s

c)

0 m/s

d)

10 m/s

67.

Is the velocity of a plane relative to an aircraft carrier slower

when it approaches from the stern (rear) or from the bow (front)?

a)

Front

b)

Rear

68.
The president’s airplane, Air Force One, flies at 250 m/s to the east with respect to the air. The air is moving at 35 m/s to the north with respect to the ground. Find the velocity of Air Force One with respect to the ground.
a)
252 m/s
b)
222 m/s
c)
435 m/s
d)
125 m/s
69.

A motorboat, which has a speed of 5 m/s in still water, is crossing a river (from west to east) The river's current is flowing south at 3.3 m/s. What is the magnitude of the boat’s resultant velocity with respect to the starting point?

a)

3.3 m/s

b)

5.0 m/s

c)

6.0 m/s

d)

8.3 m/s

70.

What is the walker's speed from the observer's perspective?

a)

10 mph

b)

40 mph

c)

50 mph

d)

30 mph

71.

What is the train's speed with respect to the stationary observer?

a)

40 mph

b)

50 mph

c)

10 mph

d)

30 mph

72.
A car travels 90 meters due north in 15 seconds. Then the car turns around and travels 40 meters due south.  What is the magnitude and direction  of the car's resultant displacement?  
a)
40 metres, South
b)
50 metres, South
c)
50 metres, North
d)
40 metres, North 
73.
How should you add two vectors?
a)
Add them head to tail
b)
Add them tail to tail
c)
Add them with the addition key
74.
Which are equivalent vectors?
a)
u and -u
b)
u and a
c)
u and v
d)
u and b
75.
The vectors a, b, c, and d are shown here.  Using only vector addition, express one of the vectors in terms of the others.
a)
D= A + C -B
b)
A= B - C - B
c)
C= D + A + B
d)
A= D + B  + A
76.

To represent vector addition visually we place two or more vectors

a)

head to head

b)

tail to head

c)

tail to tail

d)

head to tail

77.

the x component of a vector is also known as the

a)

hypotenuse

b)

adjacent

c)

reflection

d)

opposite

78.

John walks +4m and then another -5m. What is the resultant of adding both vectors together?

a)

1m

b)

9m

c)

-9m

d)

-1m

79.

The inverse tangent function's formula is

a)

tan(y/x)

b)

tan(x/y)

c)

tanΘ = (x/y)

d)

tan-1(y/x)

80.

To visually represent vector subtraction you place two or more vectors

a)

tail to head

b)

head to head

c)

tail to tail

d)

head to tanΘ

81.
Find the magnitude of a vector using ...
a)
Sine & Cosine
b)
Inverse Tangent
c)
Pythagorean Theorem
d)
Multiplication
82.

Cupid wishes to shoot an arrow from the window of a tall building to hit a person 63.6 meters from the base of a building. The window is 32.8 meters above the ground. With what minimum speed must he fire the arrow in order for it to enter the correct person?

a)

2.59 m/s

b)

24.6 m/s

c)

4.9 m/s

d)

9.5 m/s

83.
To find viy you need to use
a)
Sin
b)
Cos
c)
Tan
d)
Pythagorean Theorem
84.

Emanuel Zacchini, the famous human cannonball of the Ringling Bros. and Barnum & Bailey Circus, was fired out of a cannon with a speed of 30.0 m/s at an angle of 37o to the horizontal.


a) If he landed in a net 88.279 m away at the same height from which he was fired, how long was Zacchini in the air?

a)

3.68 seconds

b)

1.84 seconds

c)

7.36 seconds

d)

0.92 seconds

85.

Emanuel Zacchini, the famous human cannonball of the Ringling Bros. and Barnum & Bailey Circus, was fired out of a cannon with a speed of 30.0 m/s at an angle of 37o to the horizontal.


b) How long did it take him to reach his maximum height?

a)

3.68 seconds

b)

1.84 seconds

c)

7.36 seconds

d)

0.92 seconds

86.

Emanuel Zacchini, the famous human cannonball of the Ringling Bros. and Barnum & Bailey Circus, was fired out of a cannon with a speed of 30.0 m/s at an angle of 37o to the horizontal.


c) What was his maximum height?

a)

16.7 m

b)

33.4 m

c)

66.8 m

d)

8.65 m

87.

Emanuel Zacchini, the famous human cannonball of the Ringling Bros. and Barnum & Bailey Circus, was fired out of a cannon with a speed of 30.0 m/s at an angle of 37o to the horizontal.


d) What was his resultant velocity upon impact?

a)

30 m/s @ 37o CW of -x axis

b)

30 m/s @ 37o CCW of -x axis

c)

24.0 m/s @ 0o with respect to the x-axis

d)

18.1 m/s @ 90o with respect to the x-axis

88.

What angle will give you the greatest range in the x direction?

a)

30 degrees

b)

45 degrees

c)

60 degrees

d)

90 degrees

89.

What equation should be used to compute for the horizontal initial velocity of an object projected at an angle?

a)

vix = vi sin θ

b)

vix = vi cos θ

c)

viy = vi sin θ

d)

viy = vi cos θ

90.

What equation should be used to compute for the vertical initial velocity of an object projected at an angle?

a)

vix = vi sin θ

b)

vix = vi cos θ

c)

viy = vi sin θ

d)

viy = vi cos θ

91.

A cannonball is fired at a 45.0° angle and an initial velocity of 625 m/s. Assume no air resistance. What is the vertical component of the cannonball’s velocity?What is the horizontal component of the cannonball’s velocity?

a)

-625 m/s; 625 m/s

b)

441.9 m/s; 441.9 m/s

c)

-441.9 m/s; 441.9 m/s

d)

0 m/s; 625 m/s

92.

A baseball is thrown at a 22.5° angle and an initial velocity of 40 m/s. Assume no air resistance. How high does the ball go?

a)

0 m

b)

15.31 m

c)

12.08 m

d)

11.7 m

93.

A cannonball is fired at a 45.0° angle and an initial velocity of 625 m/s. Assume no air resistance. How long until the cannonball hits the ground?

a)

75.4 s

b)

45.2 s

c)

62.3 s

d)

90.2 s

94.

The distance that a projectile flies in the horizontal direction is its range.

a)

False

b)

True

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