1. A projectile launched at an angle of 30° to the horizontal is an example of which type of projectile?
A.
Horizontal projectile
B.
Oblique projectile
C.
Vertical projectile
D.
Circular projectile
Correct Answer:
Oblique projectile
Explanation:
A projectile launched at an angle other than 0° or 90° to the horizontal is called an oblique projectile.
2. A stone thrown horizontally from the edge of a cliff is an example of which type of projectile?
A.
Vertical projectile
B.
Oblique projectile
C.
Horizontal projectile
D.
Circular projectile
Correct Answer:
Horizontal projectile
Explanation:
A projectile whose initial velocity is completely horizontal is called a horizontal projectile.
3. A ball thrown straight upward is classified as which type of projectile?
A.
Horizontal projectile
B.
Oblique projectile
C.
Vertical projectile
D.
Parabolic projectile
Correct Answer:
Vertical projectile
Explanation:
When the initial velocity is directed vertically upward, the motion is called vertical projectile motion.
4. Which type of projectile has both horizontal and vertical components of initial velocity?
A.
Oblique projectile
B.
Horizontal projectile only
C.
Vertical projectile only
D.
Stationary projectile
Correct Answer:
Oblique projectile
Explanation:
An oblique projectile is launched at an angle to the horizontal, so its initial velocity has both horizontal and vertical components.
5. A projectile launched with an initial velocity parallel to the ground is called a:
A.
Vertical projectile
B.
Horizontal projectile
C.
Oblique projectile
D.
Rotational projectile
Correct Answer:
Horizontal projectile
Explanation:
A projectile launched parallel to the ground has only a horizontal component of initial velocity and is called a horizontal projectile.
6. At what launch angle to the horizontal is a projectile called a vertical projectile?
A.
0°
B.
30°
C.
45°
D.
90°
Correct Answer:
90°
Explanation:
A launch angle of 90° means the initial velocity is completely vertical, making it a vertical projectile.
7. At what launch angle to the horizontal is a projectile called a horizontal projectile?
A.
0°
B.
45°
C.
60°
D.
90°
Correct Answer:
0°
Explanation:
A launch angle of 0° means the initial velocity is parallel to the horizontal, so the projectile is horizontal.
8. A football kicked at an angle of 45° above the ground is an example of a:
A.
Horizontal projectile
B.
Vertical projectile
C.
Oblique projectile
D.
Stationary object
Correct Answer:
Oblique projectile
Explanation:
Since the football is launched at an angle between 0° and 90°, it is an oblique projectile.
9. Which type of projectile begins with zero vertical component of velocity?
A.
Vertical projectile
B.
Oblique projectile
C.
Horizontal projectile
D.
Upward projectile
Correct Answer:
Horizontal projectile
Explanation:
In horizontal projectile motion, the object is initially launched horizontally, so its initial vertical component of velocity is zero.
10. A stone thrown upward at an angle of 60° to the horizontal belongs to which category?
A.
Horizontal projectile
B.
Vertical projectile
C.
Oblique projectile
D.
Non-projectile motion
Correct Answer:
Oblique projectile
Explanation:
A projectile launched at 60° has both horizontal and vertical initial velocity components, so it is an oblique projectile.
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