Particle Motion in Two Dimensions
This worksheet focuses on understanding and analyzing particle motion in two dimensions, including projectile motion and circular motion, for Grade 11 physics students.
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Particle Motion in Two Dimensions
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Read each question carefully and answer to the best of your ability. Show all your work for calculation problems.
1. Which of the following statements is true regarding the horizontal velocity of a projectile in the absence of air resistance?
It continuously increases.
It continuously decreases.
It remains constant.
It changes direction only.
2. An object undergoing uniform circular motion experiences:
Constant velocity.
Zero acceleration.
Centripetal acceleration.
Tangential acceleration.
3. The path followed by a projectile is called its .
4. For an object in uniform circular motion, the net force is directed towards the of the circle.
5. The maximum horizontal distance covered by a projectile is known as its .
6. In projectile motion, the vertical acceleration is constant and equal to 'g' (acceleration due to gravity).
True
False
7. The speed of an object in uniform circular motion is constantly changing.
True
False
8. A ball is thrown horizontally from a cliff 45 m high with an initial speed of 20 m/s. How far from the base of the cliff does the ball land? (Ignore air resistance, g = 9.8 m/s²)
9. A car is traveling around a circular track with a radius of 50 meters at a constant speed of 10 m/s. Calculate the centripetal acceleration of the car.
10. Observe the diagram of a projectile's trajectory below. At which point(s) is the vertical component of velocity zero?
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