Multiple Choice Questions
1. Soot consists of the small unburnt particles of
a. Carbon
b. Sulphur
c. Nitrogen
d. Hydrogen
2. The gas which causes headache, nausea and giddiness when inhaled is
a. Sulphur dioxide
b. Nitric oxide
c. Carbon monoxide
d. Methane
3. The gas that causes haemorrhage when inhaled is
a. Nitrogen dioxide
b. Sulphur trioxide
c. Carbon monoxide
d. Ozone
4. The body system which is most affected by air pollution is
a. Digestive system
b. Respiratory system
c. Nervous system
d. Circulatory system
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Answer:
Jeremy accidently dropped his toy stuffed animal from the balcony of his apartment on the fourth floor. The toy hit the ground at a velocity of 16.0 meters/second. At impact, it took 2.0 seconds for the toy’s velocity to reach 0 meters/second. If the toy has a mass of 0.25 kilograms, what's the force of the impact? Use F = ma, where .
The force of the impact is how many newtons.
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