- Projectile motion is an example of:
A) One-dimensional motion
B) Uniform circular motion
C) Two-dimensional motion
D) Random motion
- The path of a projectile under gravity is:
A) Circle
B) Ellipse
C) Parabola
D) Straight line
- In projectile motion (ignoring air resistance), horizontal acceleration is:
A) g
B) 0
C) 9.8 m/s² upward
D) Variable
- Vertical acceleration in projectile motion is:
A) Zero
B) Constant upward
C) Constant downward (g)
D) Changing
- The horizontal velocity of a projectile is:
A) Increasing
B) Decreasing
C) Constant
D) Zero
- The trajectory of a projectile is obtained by eliminating:
A) velocity
B) displacement
C) time
D) acceleration
- The maximum height is achieved when vertical velocity becomes:
A) Maximum
B) Zero
C) Negative maximum
D) Constant
- Time of flight depends on:
A) cosθ
B) sinθ
C) tanθ
D) sin²θ only
- The range of a projectile is maximum at angle:
A) 30°
B) 45°
C) 60°
D) 90°
- Two angles giving same range are:
A) 20° and 70°
B) 30° and 30°
C) 45° and 90°
D) 10° and 20°
- Range formula is:
A) (R = v_0^2 \cos θ / g)
B) (R = v_0^2 \sin 2θ / g)
C) (R = v_0 \sin θ / g)
D) (R = g t^2)
- Time of flight is:
A) (2v_0 \cos θ / g)
B) (2v_0 \sin θ / g)
C) (v_0 / g)
D) (v_0^2 / g)
Answer: B
- The trajectory equation of projectile motion is:
A) Linear
B) Quadratic
C) Cubic
D) Exponential
- Why is projectile motion a parabola?
A) Constant velocity in all directions
B) Linear horizontal and quadratic vertical motion
C) Circular motion effect
D) Variable gravity
- At the highest point of a projectile:
A) Velocity is maximum
B) Acceleration is zero
C) Vertical velocity is zero
D) Horizontal velocity is zero
- Total mechanical energy in projectile motion (without air resistance) is:
A) Increasing
B) Decreasing
C) Constant
D) Zero
- A projectile fired horizontally has initial vertical velocity:
A) Equal to v₀
B) Zero
C) Maximum
D) Negative
- Horizontal range depends on:
A) mass
B) velocity only
C) angle and velocity
D) height only
- Projectile motion is derived from Newton’s:
A) First law
B) Second law
C) Third law
D) Law of gravitation only
- If angle increases beyond 45°, range:
A) increases
B) decreases
C) remains same
D) becomes infinite
- Air resistance affects projectile motion by:
A) increasing range
B) making path perfectly parabolic
C) distorting parabolic path
D) removing gravity
- Maximum height depends on:
A) v₀ cosθ
B) v₀ sinθ
C) mass
D) density of air
- Projectile motion is independent of:
A) gravity
B) time
C) horizontal motion
D) vertical motion
- In projectile motion, acceleration is:
A) Zero
B) Constant and downward
C) Increasing
D) Random
- The shape of trajectory in ideal conditions is determined by:
A) Newton’s third law
B) Constant horizontal velocity and gravitational acceleration
C) Air resistance
D) Friction
