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WorksheetsGrade 9
Total questions: 25
Worksheet time: 24mins
What is the path that a projectile follow?
vertical
hyperbola
parabolic
displacement
The horizontal range cover by a projectile is proportional to _______.
its velocity
square of the sine of angle of projection
square of its velocity
sine of angle of projection
What is the direction of velocity in the trajectory of a projectile?
perpendicular to each other
parallel to each other
inclined to each other at angle ‘45 degree
inclined to each other at angle of 60
A soccer ball is thrown upward in the air with an initial velocity of 40m/s at an angle of 30 degrees. How long does it take to reach back to the point bit was thrown from?
6 s
8 s
2 s
4 s
Two objects are released from the same height. Object A falls straight down from the cliff and object B follows a curved parabolic path. What is the correct observation?
A hits the ground before B
B hits the ground before A
A and B hit the ground at the same time
A hits the ground first only if it is heavier than B
Which is NOT be considered a projectile? A ball ___________
thrown in the air
thrown straight up
rolling off a table
rolling down a slope
A ball is thrown downward from the top of a roof with a speed of 25m/s after 2s, its velocity will be down.
-5.4 m/s
-44. 6m/s
19.6m/s
44.6m/s
A body is projected horizontally from the top of a tower with a speed of 20m/s. After 2 seconds, its velocity will be ________?
14 m/s
20 m/s
28 m/s
40 m/s
What is the value of the acceleration due to gravity near the surface of the Earth?
– 9.8 ft/s2
– 9.8 m/s2
9.8 m/s
32.2 ft/s
The acceleration due to gravity acts ____________
upward
downward
toward outer space
depending on the motion of the object
Which of the following is NOT an example of projectile motion?
a long jumper in action
a baseball hit by a bat
a volleyball served over a net
a balloon drifting toward the Earth
As a projectile moves up, __________________.
Its velocity and acceleration remain constant
Its velocity and acceleration decrease
Its velocity decreases while its acceleration remains constant
Its velocity increases while its acceleration decreases
At the highest point of the trajectory of projectile, which quantity is zero?
acceleration
velocity
vertical component of velocity
horizontal component of velocity
A baseball is thrown at 22.5° angle and an initial velocity of 65m/s. Assume no air resistance. How far did the ball travel horizontally when it hit the ground?
103.7 m
330.2 m
500.76 m
31.63 m
A projectile’s range is the distance it travels _______.
horizontally
in a curve
in a straight path
Vertically
What force acts in the y direction that causes an object to travel in a parabolic arc?
Gravity
tension
friction
force
Write T if the statement is correct F if otherwise.
Gravity makes things fall and accelerate at a constant rate of – 9.8 m/s/s
(a)
Write T if the statement is correct, F if otherwise.
Free Fall is objects in motion solely under the influence of gravity either drooped or thrown
(a)
Write T if the statement is true and F if otherwise.
A projectile is a motion of an object that is thrown, or projected on the air at an angle
(a)
Write T if the statement is correct, F if otherwise.
The formula for getting t=time for horizontally launched projectile is t=Vox
(a)
Which between the feather and the metal bolt would hit the ground first if dropped from the same height in a vacuum?
the feather
they would be suspended in a vacuum gravity
the metal bolt
they would hit the ground at the same time
What is the shape form when a given object is throwned?
trajectory
maximum height
parabola
time of flight
An object is thrown upwards with a speed of 14m/s. How high above the projection point does it reach?
5.0m
37.5 m
15 m
20m
A pingpong ball is dropped from a roof of 16m from the ground. How long does it take for the ball to reach the ground?
1.8 s
1.9 s
3.3 s
3.6 s
Who is the proponent of gravity?
Issaac Newton
Albert Einstein
Marie Curie
Prescot Joules
