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PROJECTILE MOTION

Total questions: 70

Worksheet time: 2hrs 36mins

Name
Class
Date
1.

A basketball that is thrown to the ring follows a path that is ______________.

a)

hyperbolic

b)

parabolic

c)

linear

d)

circular

2.

What is the vertical acceleration of a projectile due to gravity?

a)

-9.0 m/s

b)

-9.8 m/s

c)

-9.8 m/s2

d)

-9.08 m/s2

3.

In the diagram, which letter represents the vertical displacement dyd_y^{ }  ?

a)

A

b)

B

c)

C

d)

D

4.

In the diagram, which letter represents the horizontal displacement dxd_x^{ }  ?

a)

A

b)

B

c)

C

d)

D

5.

What is the horizontal acceleration of a projectile?

a)

0 ms2\frac{m}{s^2}  

b)

-9.8 ms2\frac{m}{s^2}  

6.

What force acts in the y direction that causes an object to follow a parabolic path?

a)

tension

b)

friction

c)

gravity

d)

no force

7.

A coin tossed vertically upward and it reaches the highest point in 7.0s. at the highest point, the velocity is _______.

a)

9.8 m/s

b)

0

c)

9.8 m/s2 

d)

98 m/s2

8.

A coin tossed vertically upward. when it reaches the highest point where the object momentarily stops, the acceleration of this projectile is _____.

a)

9.8 m/s

b)

0

c)

9.8 m/s2

d)

98 m/s2

9.

A ball is thrown vertically upward. When it reaches ground after falling from the highest point, its velocity is usually at maximum just before it hits the ground. In this situation, the acceleration of this projectile is _____.

a)

9.8 m/s

b)

0

c)

9.8 m/s2

d)

98 m/s2

10.

When the initial launching angle is greater, the _______ the range will be.

a)

shorter

b)

longer

11.

A ball kicked horizontally with an initial speed of 30 m/s. if the situation asks to find the distance covered, we should solve for _______.

a)

dx

b)

dy

c)

vx

d)

vy

12.

The following quantities are important in the study of a projectile motion EXCEPT ______.

a)

speed of the projectile

b)

mass of the projectile

c)

height of release

d)

time covered

13.

It is the path of a projectile.

a)

displacement

b)

velocity

c)

speed

d)

trajectory

14.

It is the speed before a projectile is affected by gravity.

a)

initial speed

b)

average velocity

c)

final speed

d)

displacement

15.

It is the speed usually before the object touches the ground.

a)

initial speed

b)

final speed

c)

acceleration

d)

trajectory

16.

The value of the acceleration due to gravity of the Earth.

a)

980 m/s

b)

9.8 m/s

c)

9.8 m/s2

d)

98 m/s2

17.

An object or body undergoes projectile motion.

a)

trajectory

b)

parabola

c)

range

d)

projectile

18.

A _______ is any object that once projected or dropped continues in motion by its own inertia and is influenced only by the downward force of gravity.

a)

projectile

b)

parabola

19.

If a ball is thrown at a 15° angle, it will have a _____ range and height than a ball thrown at a 45° angle.

a)

shorter

b)

longer

20.

The initial velocity of Manuel playing “luksong tinik” has horizontal and vertical components that are equal in magnitude. What angle does his velocity make with the horizontal?

a)

30°

b)

45°

c)

60°

d)

90°

21.

A sepak takraw is kicked from a height of two meters. What do you think is the path it will follow?

a)

circular

b)

linear

c)

hyperbolic

d)

parabolic

22.

A goalie made three soccer punts at 70°, 50°, and 30° with varying speeds – all reaching the same maximum heights. Which statement is correct?

a)

All punts have the same hang time

b)

The punt at 70° has the longest hang time

c)

The punt at 50° has the longest hang time

d)

The punt at 30° has the longest hang time

23.

A volleyball is served at a speed of 8.0 m/s at an angle 35° above the horizontal. What is the speed of the ball when received by the opponent at the same height?

a)

4.0 m/s

b)

8.0 m/s

c)

9.8 m/s

d)

16.0 m/s

24.

A Batang Pinoy athlete from your school throws a javelin, always at the same speed, at four different angles (30°, 40°, 60°, and 80°) above the horizontal. Which two throws cause the javelin to land the same distance away?

a)

30° and 80°

b)

40° and 80°

c)

30° and 60°

d)

40° and 60°

25.

TRUE or FALSE:

A projectile does not have to have horizontal motion.

a)

TRUE

b)

FALSE

26.

TRUE or FALSE:

A projectile could begin its projectile motion with a downward velocity.

a)

TRUE

b)

FALSE

27.

TRUE or FALSE:

A projectile does not need to be "falling."

a)

TRUE

b)

FALSE

28.

A projectile is launched through the air. When the object reaches its maximum height above ground, which quantity will be zero?

a)

x-component of velocity

b)

y-component of velocity

c)

x-component of acceleration

d)

y-component of acceleration

29.

A projectile is launched at 68.0° above the horizontal and at a speed of 55 m/s. How long will it take the projectile to reach maximum height?

a)

1.8 s

b)

3.2 s

c)

4.5 s

d)

5.2 s

30.

A projectile is launched at 68.0° above the horizontal and at a speed of 55 m/s. What is the maximum height reached by the projectile?

a)

233 m

b)

158 m

c)

2.6 m

d)

133 m

31.

For a projectile, which of the following quantities is CONSTANT throughout the trajectory?

a)

y-component of velocity

b)

x-component of velocity

c)

y-component of position

d)

x-component of position

32.

A projectile is launched at 68.0° above the horizontal and at a speed of 55 m/s. What is the projectile's x-component of velocity at the maximum height?

a)

39 m/s

b)

55.7 m/s

c)

20.6 m/s

d)

32.3 m/s

33.

A projectile is launched at 68.0° above the horizontal and at a speed of 55 m/s. What is the horizontal displacement at maximum height?

a)

124 m

b)

116 m

c)

222 m

d)

107 m

34.
If I throw a crayon straight up at 12m/s, how fast is its speed when i catch it at the same height?
a)
6 m/s
b)
12 m/s
c)
18 m/s
d)
24 m/s
35.
An object is shot from the ground (at 25 m/s) at 25 degrees and 65 degrees.  Which one has the greater range?   (assume no air resistance)
a)
25 degrees
b)
65 degrees
c)
same for both
36.
An object is shot from the ground (at 25 m/s) at 25 degrees and 65 degrees.  Which one rises to a higher height? (assume no air resistance)
a)
25 degrees
b)
65 degrees
c)
same for both
37.
An object is shot from the ground (at 25 m/s) at 25 degrees and 65 degrees.  Which is in the air for longer? (assume no air resistance)
a)
25 degrees
b)
65 degrees
c)
same for both
38.
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
39.
Consider drops of water leaking from a water faucet. As the drops fall they 
a)
remain at a relatively fixed distance from each other
b)
get farther apart
c)
get closer together
40.
Two balls of the same mass begin at a height of 2m. One is released from rest while the other begins with a horizontal velocity of 5m/s. Which object its the ground first?
a)
Ball A
b)
Ball B
c)
Both balls his the ground at the same time
d)
unable to determine with information given
41.
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
42.
Two objects of the same mass are launched from the ground. Object A has a launch angle of 45, while Object B has a launch angle of 65. Which object has the greatest maximum height height?
a)
A
b)
B
c)
Both objects reach the maximum height
d)
unable to determine with the given information
43.
Two objects of the same mass are launched from the ground. Object A has a launch angle of 45, while Object B has a launch angle of 65. Which object will hit the ground first?
a)
A
b)
B
c)
Both objects hit the ground at the same time
d)
unable to determine with the given information
44.
A projectile is launched from a height with an initial velocity v0,x. The vf,x represents the final horizontal velocity before impact.
a)
v0,x = vf,x
b)
v0,x < vf,x
c)
v0,x > vf,x
d)
unable to determine
45.

A horizontally-launched projectile arcs out and hits the ground below. The vertical displacement and the horizontal displacement are measured. What is the best equation to use to find the time the projectile was in the air?

a)

d→x=v→x⋅t\overrightarrow{d}_x=\overrightarrow{v}_x\cdot t

b)

d→y=+12⋅g⋅t2+v→yi⋅t\overrightarrow{d}_y=+\frac{1}{2}\cdot g\cdot t^2+\overrightarrow{v}_{yi}\cdot t

c)

v→yf=v→yi+g⋅t\overrightarrow{v}_{yf}=\overrightarrow{v}_{yi}+g\cdot t

d)

t=2⋅d→ygt=\sqrt{\frac{2\cdot\overrightarrow{d}_y}{g}}

46.

A ball rolls off a table and strikes the floor, as shown. If the time the ball spent in the air was 0.58 s, how fast did the ball leave the table?

a)

3.6 m/s

b)

1.2 m/s

c)

2.9 m/s

d)

0.99 m/s

47.

A skateboarder rolls off a bridge into the river as shown. If the skateboarder was originally moving at 7.0 m/s, how much time did the skateboarder spend in the air?

a)

1.3 s

b)

0.79 s

c)

38.5 s

d)

0.70 s

e)

Not enough information given.

48.

A skateboarder rolls off a bridge into the river as shown. If the skateboarder spent 0.79 s in the air, how far above the river is the edge of the bridge?

a)

5.5 m

b)

0.70 m

c)

1.3 m

d)

3.1 m

e)

Not enough information given.

49.

In the picture, cannonball A was launched at 10 m/s at 60°, and B was launched at 18 m/s at 25°. The cannonball that hit the ground first was

a)

A, because it had less total velocity.

b)

B, because it had more total velocity.

c)

A, because it had less initial vertical velocity.

d)

B, because it had less initial vertical velocity.

50.

In a projectile motion we always have...

a)

1 component (x)

b)

3 components (x,y, and z)

c)

2 components (x and y)

d)

0 components

51.

A ball thrown straight up takes 8 total seconds to complete its journey all the way up and down. 1 second into its journey and 7 seconds into its journey the magnitude of its velocity will be ______________ and its direction _______________.

a)

opposite, the same

b)

the same, opposite

c)

the same, the same

d)

opposite, opposite

52.

If a ball thrown straight up into the air takes 4 seconds to reach the top (peak), how long will it take to travel from the peak back to the original position?

a)

0s

b)

1s

c)

3s

d)

4s

53.

The fact that an apple and a watermelon, dropped simultaneously from the same height, would hit the ground at the same time indicates that

a)

you don't like apples or watermelons.

b)

greater masses have greater acceleration.

c)

lesser masses have greater acceleration.

d)

acceleration is independent of mass.

54.

If two projectiles are launched at two different heights, 2m and 10m, which one will reach the ground first?

a)

2m

b)

10m

c)

they both will hit the ground at the same time

55.

An airplane traveling at constant velocity drops a bomb. Where is the airplane when the bomb hits the

ground?

a)

above the bomb

b)

before the bomb

c)

past the bomb

56.

Which of the following statements about the horizontal and vertical components of projectile motion is true?

a)

Changes in the horizontal component occur only when the vertical component changes.

b)

Both the horizontal and vertical components are always constant.

c)

The vertical component changes while the horizontal component stays the same.

d)

The horizontal and vertical components are dependent of each other.

57.

Victor Velocity is standing on top of the roof of his house, firing stones with his slingshot over a level field. He is aiming straight outward, horizontally. If Victor pulls back harder on the sling to shoot a stone, which of the following quantities will be changed?

a)

The vertical displacement of the stone.

b)

The distance the stone travels, and the horizontal velocity.

c)

The time it takes the stone to strike the ground, and the horizontal velocity.

58.

Suppose Lemming A runs off the edge of the cliff at 2 m/s and Lemming B runs off the edge at 1 m/s. Which will hit the ground first?

a)

A

b)

B

c)

Both at the same time

59.

Suppose Lemming A runs off the edge of the cliff at 2 m/s and Lemming B runs off the edge at 1 m/s. Which will hit the ground farther from the base of the cliff?

a)

A

b)

B

c)

Both at the same distance

60.

A package is dropped from an airplane, where will the package hit the ground?

a)

A

b)

B

c)

C

61.
A ball is thrown horizontally at a height of 2.2 meters at a velocity of 65 m/s. Assume no air resistance. How long until the ball reaches the ground?
a)
0.45 s
b)
0.67 s
c)
0.22 s
d)
0.47 s
62.
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
63.
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
64.
A bullet is fired horizontally at a height of 1.3 meters at a velocity of 950 m/s. Assume no air resistance. How far did the bullet travel horizontally when it hit the ground?
a)
252.04 m
b)
489.32 m
c)
126.02 m
d)
346.00 m
65.
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
66.
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
67.
A cannonball is fired at a 45.0° angle and an initial velocity of 625 m/s. Assume no air resistance. How high did the cannonball travel?
a)
9963 m
b)
39,771 m
c)
7.22 m
d)
17183.25 m
68.
A baseball is thrown at a 22.5° angle and an initial velocity of 65 m/s. Assume no air resistance. What is the vertical component of the ball’s velocity? What is the horizontal component of the ball’s velocity?
a)
24.9 m/s; 60.1 m/s
b)
60.1 m/s; 24.9 m/s
c)
0 m/s; 65 m/s
d)
17183.25 m
69.
A baseball is thrown at a 22.5° angle and an initial velocity of 65 m/s. Assume no air resistance. How far did the ball travel horizontally when it hit the ground?
a)
500.76 m
b)
31.63 m
c)
103.7 m
d)
305.05 m
70.

If you drop a banana, how fast is it going after 2 seconds?

a)

5 m/s

b)

10 m/s

c)

20 m/s

d)

30 m/s

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