Particle Motion in Two Dimensions Worksheet
Explore projectile motion, vector components, and problem-solving in two-dimensional kinematics for Grade 9 science students.
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Particle Motion in Two Dimensions
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Read each question carefully and provide your best answer. Show all work for calculations.
1. Which of the following is an example of projectile motion?
A car driving in a straight line
A ball thrown horizontally from a cliff
A satellite orbiting Earth
A person walking on a treadmill
2. The horizontal velocity of a projectile (ignoring air resistance) is:
Constantly increasing
Constantly decreasing
Constant
Zero
3. The path followed by a projectile is called its .
4. In projectile motion, the vertical motion is affected by , while the horizontal motion is not.
5. A projectile launched at an angle will have zero vertical velocity at the peak of its trajectory.
True
False
6. Air resistance always acts in the same direction as the projectile's velocity.
True
False
7. A student kicks a soccer ball with an initial velocity of 15 m/s at an angle of 30 degrees above the horizontal. Explain how you would find the horizontal and vertical components of the initial velocity.
8. Describe the effect of gravity on the horizontal and vertical components of a projectile's motion.
9. Observe the image below showing projectile motion. Identify and label the following on the diagram:
a) Initial velocity vector
b) Horizontal range
c) Maximum height
d) Trajectory
