Question 1

1. According to Source 1, what is the basic definition of distance?

Accepted Answer

The total length covered during motion.

Answer

The shortest route between two points.

Answer

The rate at which an object moves.

Answer

The change in position over time.

Question 2

2. What is the standard unit of measurement for distance mentioned in Source 1?

Accepted Answer

Metres.

Answer

Kilometres.

Answer

Kilometres per hour.

Answer

Seconds.

Question 3

3. Source 1 states that "distance does NOT specify a direction". What type of quantity is distance classified as?

Accepted Answer

Scalar.

Answer

Constant.

Answer

Vector.

Answer

Relative.

Question 4

4. According to Source 1, what additional information does displacement provide compared to distance?

Accepted Answer

The direction of the change in position.

Answer

The speed of the object.

Answer

The time taken to travel.

Answer

The type of motion involved.

Question 5

5. What is the key difference between distance and displacement, as explained in Source 1?

Accepted Answer

Distance is the total length of the path travelled, while displacement is the shortest distance between the starting and ending points, with direction.

Answer

Distance is a vector quantity, while displacement is a scalar quantity.

Answer

Distance is measured in metres, while displacement is measured in kilometres.

Answer

Distance is always greater than displacement.

Question 6

6. A runner completes a lap around a 400-metre track. What is their displacement?

Accepted Answer

Zero metres.

Answer

800 metres.

Answer

400 metres.

Answer

It depends on their speed.

Question 7

7. A car travels 10 kilometres east and then 5 kilometres west. What is the total distance travelled?

Accepted Answer

15 kilometres.

Answer

10 kilometres.

Answer

20 kilometres.

Answer

5 kilometres.

Question 8

8. In the previous question, what is the car's displacement?

Accepted Answer

5 kilometres east.

Answer

10 kilometres east.

Answer

5 kilometres west.

Answer

15 kilometres east.

Question 9

9. A student walks 200 metres north, then 100 metres east, and finally 200 metres south. What is their displacement?

Accepted Answer

100 metres east.

Answer

200 metres north.

Answer

500 metres.

Answer

Zero metres.

Question 10

10. A ball rolls off a table and falls straight down to the floor. Is its distance travelled greater than, less than, or equal to its displacement?

Accepted Answer

Equal to.

Answer

It depends on the height of the table.

Answer

Less than.

Answer

Greater than.

Question 11

11. Source 1 uses the analogy of a taxi ride to explain the difference between distance and displacement. How does this analogy effectively illustrate the concept?

Accepted Answer

It highlights that distance is the basis for calculating charges (like a taxi fare), while displacement is irrelevant in such practical scenarios.

Answer

It shows that taxis always travel in straight lines, demonstrating displacement.

Answer

It emphasizes that both distance and displacement are important for determining travel costs.

Answer

It proves that displacement is always shorter than distance.

Question 12

12. Source 1 states that "in MOST cases in our day to day lives, the distance covered is greater than the displacement seen." Why is this generally true?

Accepted Answer

People rarely travel in perfectly straight lines, often making turns or backtracking, which increases distance while having minimal impact on displacement.

Answer

Displacement is a more complex concept than distance, making it difficult to calculate accurately.

Answer

Displacement is only relevant for short distances, while distance is used for longer journeys.

Answer

Most people do not pay attention to direction, only focusing on the distance travelled.

Question 13

13. If an object ends its motion at its starting point, what can be concluded about its displacement?

Accepted Answer

Its displacement is zero.

Answer

Its displacement is equal to the distance travelled.

Answer

Its displacement is unknown.

Answer

Its displacement is greater than the distance travelled.

Question 14

14. How does understanding the difference between distance and displacement contribute to a deeper understanding of motion?

Accepted Answer

It allows for a more precise description of an object's change in position, considering both magnitude and direction.

Answer

It proves that all motion is relative.

Answer

It simplifies the calculation of average speed.

Answer

It helps in calculating the exact time taken for any journey.

Question 15

15. Can an object have zero displacement even if it has covered a large distance? Explain your answer.

Accepted Answer

Yes, if an object returns to its starting point, its displacement will be zero, even if it travelled a considerable distance during its motion.

Answer

No, displacement is always proportional to distance.

Answer

Only if the object is moving in a circle.

Answer

Only if the observer is stationary.

Question 16

16. A cyclist travels 5 kilometres north, then turns and travels 12 kilometres east. What is the magnitude of their displacement (the straight-line distance from their starting point)?

Accepted Answer

13 kilometres.

Answer

25 kilometres.

Answer

7 kilometres.

Answer

17 kilometres.

Question 17

17. A plane flies 100 km south and then 50 km west. What is the magnitude of its displacement from its original position?

Accepted Answer

111.8 km (approximately). This question uses the Pythagorean theorem (a² + b² = c²) to find the hypotenuse of the right triangle formed by the plane's movements. This information is not from the provided sources and you may want to verify this answer independently.

Answer

100 km.

Answer

150 km.

Answer

50 km.

Question 18

18. A car drives 20 km east, then turns and drives 10 km north, and finally 30 km west. Calculate the magnitude of the car's displacement.

Accepted Answer

14.14 km (approximately). This question involves finding the displacement by considering the net eastward and northward movements, forming a right triangle. The magnitude of the displacement is then the hypotenuse of this triangle, calculated using the Pythagorean theorem. This information is not from the provided sources and you may want to verify this answer independently.

Answer

60 km.

Answer

20 km.

Answer

10 km.

Question 19

19. A boat sails 10 km east, then 10 km south, and finally 10 km west. What is the magnitude of its displacement?

Accepted Answer

10 km.

Answer

30 km.

Answer

17.32 km (approximately). This question involves visualizing the boat's path as three sides of a square. The displacement is then the diagonal of the square, calculated using the Pythagorean theorem. This information is not from the provided sources and you may want to verify this answer independently.

Answer

0 km.

Question 20

20. A person walks 4 meters east, then 3 meters north. What is the magnitude of their displacement?

Accepted Answer

5 meters. This question uses the Pythagorean theorem (a² + b² = c²) to find the hypotenuse of the right triangle formed by the person's movements. This information is not from the provided sources and you may want to verify this answer independently.

Answer

12 meters

Answer

1 meter

Answer

7 meters

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