Grade 9 Physics: Quantitative Problems
A worksheet for Grade 9 Science students focusing on quantitative problems in Physics, covering topics like force, motion, and energy.
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Standards
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Grade 9 Physics: Quantitative Problems
Name:
Date:
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Read each question carefully and show all your work. Use the provided space for your calculations and answers. Remember to include units in your final answers.
1. A car accelerates from rest to 20 m/s in 5 seconds. If the mass of the car is 1200 kg, calculate the net force acting on the car.
2. When a ball is thrown upwards, its kinetic energy is transformed into energy. At the peak of its trajectory, its kinetic energy is .
3. A student lifts a 5 kg textbook from the floor to a shelf 1.5 m high. How much work is done against gravity?
7.5 J
73.5 J
50 J
750 J
4. Momentum is a scalar quantity.
True
False
5. A ball of mass 0.5 kg is dropped from a height of 10 meters. Calculate its speed just before it hits the ground. (Ignore air resistance, g = 9.8 m/s²)
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