Student B: As temperature increases, particles have more energy. Their collisions are less energetic. Since the collisions are less energetic, there are more instances of particles undergoing chemical reaction, so the rate of reaction increase. This explanation: 1. needs improvement because it is not accurate. 2. is good because it is accurate.

From 0 to 5 seconds john pushed a box 5 meters. from 5 to 10 seconds, paul pushed the same box another 5 meters. who did more work? a. john b. paul c. john and paul did the same amount of work.

When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.

How does an observation about an object differ from an inference about that object