# Download Ch. 2-3

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Transcript
```ISCI 2002 – Quiz – Chapters 2-3
(Each question is worth one point = 15 points)
Part I – Fill in the Blanks
1. A quantity of 5 m/s2 is a measure of ______________
2. Newton was the first to discover the notion of _________ or an object’s resistance to motion.
3. During free fall an object accelerates toward the Earth at this rate: __________
4. Velocity differs from speed in that velocity has a ___________.
5. Newton’s Second Law states the acceleration is ___________________ to the mass of an object in motion.
6. Weight equals ___________ times the ________________.
7. Acceleration is the change in the ___________ of an object over time.
8. A vector quantity has both ________________ and a _________________.
9. Scalar quantities only have ___________________.
10. A person pushes on a wall with a force of 20 N. The wall pushes back with a force of 20 N. This is an example of
Newton’s _________________ law.
11. Speed is ___________ covered over a period of ____________.
Part II - Math Applications:
1. A bicycle moves from rest to 12 m/s in 6.5 seconds. Determine the acceleration of the bicycle.
2. How far away was a lightning strike if thunder is heard 5.00 seconds after seeing the flash? Assume that sound
traveled at 350.0 m/s during the storm.
3. A 40-g grocery cart is pushed with a force of 96-N. Determine the acceleration of the cart.
4. How much force or thrust must a 20,000-kg airplane develop to achieve an acceleration of 1.5 m/s2 ?
```
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