Impulse in Physics
Explore the concept of impulse, its relationship to momentum, and its applications in real-world scenarios.
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Impulse in Physics
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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 is the correct definition of impulse?
The rate of change of momentum.
The product of force and time.
The change in velocity over time.
The mass of an object multiplied by its acceleration.
2. What are the units of impulse?
Newtons (N)
Joules (J)
Newton-seconds (N·s)
Kilograms per meter (kg/m)
3. Impulse is equal to the change in .
4. To decrease the force of an impact, the time of contact should be .
5. A 0.15 kg baseball is thrown with a velocity of 40 m/s and is hit by a bat, reversing its direction and giving it a velocity of 50 m/s. What is the impulse imparted to the baseball?
6. Explain how airbags in cars help reduce injuries during a collision, relating your answer to the concept of impulse.
7. A large force applied for a short time can produce the same impulse as a small force applied for a long time.
True
False
8. Impulse is a scalar quantity.
True
False
Use the words below to complete the sentences.
9. Impulse is the product of and the over which it acts.
10. The impulse-momentum theorem states that the impulse applied to an object is equal to the change in its .