Reading Comprehension Questions 1 
Chapter 4 – Linear Motion
Reading Assignment
Section 4.1 –Motion Is Relative
1. How can you describe motion?
2. Describe motion in terms of space shuttle? What is it relative to? A race car?
3. How can you be both at rest and also moving about 107,000 km/h at the same time?
4. When you describe the speed of anything what are you actually describing?
5. How can you tell that an object is moving?
6. You cover 10 meters in 1 second. Is your speed the same if you cover 20 meters in 2 seconds?
Section 4.2– Speed
1. What is speed? How can you calculate speed?
2. If a cheetah can maintain a speed of 25 m/s, how far will it travel in 10 s? In 1 minute?
3. What are some units that can be used for describing speed? Which units will be used primarily throughout the book?
4. How can you tell the speed that a car is moving at? What is this speed called?
5. When planning a trip what does a driver want to know? What is this called?
6. Does the speedometer of a car read instantaneous speed or average speed?
7. When calculating average speed, what is not accounted for?
8. If you know the average speed and the travel time, how do you calculate the distance travelled?
9. The speedometer in a car also has an instrument that records distance travelled. What is this called? If this instrument reads zero at the beginning of a trip and 35 km a half hour later, what is the average speed?
Section 4.3 – Velocity
1. Although we use these two words interchangeably, what is the difference between speed and velocity?
2. What is described when a car travels 60 km/h? How could we describe its velocity?
3. In terms of scalar and vector quantities, how would you describe speed? Velocity?
4. What does constant speed describe? Constant velocity?
5. If the velocity changes what also must be changing? Explain.
6. What controls on a car cause a change in speed? What causes a change in velocity?
7. What do we call the tendency of an object to resist change in its state of motion?
8. The
Reading Assignment
Section 4.1 –Motion Is Relative
1. How can you describe motion?
2. Describe motion in terms of space shuttle? What is it relative to? A race car?
3. How can you be both at rest and also moving about 107,000 km/h at the same time?
4. When you describe the speed of anything what are you actually describing?
5. How can you tell that an object is moving?
6. You cover 10 meters in 1 second. Is your speed the same if you cover 20 meters in 2 seconds?
Section 4.2– Speed
1. What is speed? How can you calculate speed?
2. If a cheetah can maintain a speed of 25 m/s, how far will it travel in 10 s? In 1 minute?
3. What are some units that can be used for describing speed? Which units will be used primarily throughout the book?
4. How can you tell the speed that a car is moving at? What is this speed called?
5. When planning a trip what does a driver want to know? What is this called?
6. Does the speedometer of a car read instantaneous speed or average speed?
7. When calculating average speed, what is not accounted for?
8. If you know the average speed and the travel time, how do you calculate the distance travelled?
9. The speedometer in a car also has an instrument that records distance travelled. What is this called? If this instrument reads zero at the beginning of a trip and 35 km a half hour later, what is the average speed?
Section 4.3 – Velocity
1. Although we use these two words interchangeably, what is the difference between speed and velocity?
2. What is described when a car travels 60 km/h? How could we describe its velocity?
3. In terms of scalar and vector quantities, how would you describe speed? Velocity?
4. What does constant speed describe? Constant velocity?
5. If the velocity changes what also must be changing? Explain.
6. What controls on a car cause a change in speed? What causes a change in velocity?
7. What do we call the tendency of an object to resist change in its state of motion?
8. The