#1
Which of the following is a projectile motion principle?
The horizontal component of velocity remains constant.
ExplanationHorizontal velocity is not affected by gravity in projectile motion.
#2
In projectile motion, what is the shape of the trajectory?
Parabola
ExplanationThe curved path of a projectile under constant gravity.
#3
What happens to the vertical component of velocity during projectile motion?
It decreases continuously.
ExplanationGravity acts on the vertical velocity, reducing it over time.
#4
At what point in projectile motion is the vertical velocity equal to zero?
At the highest point
ExplanationAt the peak, the projectile momentarily stops ascending before descending.
#5
Which of the following statements about projectile motion is true?
The time of flight of a projectile is independent of its initial velocity.
ExplanationTime of flight is determined by vertical motion and is constant regardless of launch speed.
#6
In which scenario does a projectile have the maximum range?
Angle of projection is 45 degrees
ExplanationOptimal angle for the longest horizontal distance.
#7
What is the relationship between the range and the launch angle of a projectile?
Range increases as the launch angle increases up to a certain point.
ExplanationOptimal angle exists for maximizing horizontal distance.
#8
What factors affect the range of a projectile?
Both initial velocity and angle of projection
ExplanationLaunch speed and angle determine how far a projectile travels.
#9
What is the relationship between the horizontal and vertical components of velocity in projectile motion?
They can be resolved from the initial velocity vector.
ExplanationInitial velocity vector can be broken into horizontal and vertical components.
#10
What is the effect of increasing the launch angle on the maximum height reached by a projectile?
It increases.
ExplanationHigher launch angle leads to greater vertical displacement.
#11
Which of the following factors does NOT affect the time of flight of a projectile?
Air resistance
ExplanationTime of flight is independent of air resistance in ideal conditions.
#12
What is the angle of projection for a projectile to have the same range for two different initial velocities?
45 degrees
ExplanationEqual ranges are achieved at a specific launch angle regardless of initial speed.