Grade 12 Physics: Free Fall
A worksheet covering fundamental concepts and calculations related to free fall for Grade 12 physics students.
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Grade 12 Physics: Free Fall
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Read each question carefully and provide your answers in the space provided. Show all your work for calculation problems.
1. Which of the following statements best describes an object in free fall?
An object moving upwards after being thrown.
An object falling only under the influence of gravity.
An object moving at a constant velocity.
An object experiencing significant air resistance.
2. What is the approximate acceleration due to gravity near the Earth's surface?
0 m/s²
9.8 m/s² downwards
9.8 m/s² upwards
98 m/s² downwards
3. In the absence of air resistance, all objects fall with the same regardless of their mass.
4. The final velocity of an object in free fall increases by approximately every second.
5. A stone is dropped from the top of a tall building. If it takes 3.5 seconds to reach the ground, what is the height of the building? (Ignore air resistance, g = 9.8 m/s²)
6. A ball is thrown vertically upwards with an initial velocity of 15 m/s. How long does it take to reach its maximum height? (Ignore air resistance, g = 9.8 m/s²)
7. A feather and a hammer dropped simultaneously on the Moon will hit the surface at different times due to the absence of an atmosphere.
True
False
8. An object thrown horizontally from a cliff is not in free fall because its initial velocity is not zero.
True
False
9. A ball is dropped from a height of 20 meters. What is its velocity just before it hits the ground? (Ignore air resistance, g = 9.8 m/s²)
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