Distance, Displacement, Speed And Velocity

Question 1

What is the difference between distance and displacement?

Answer 1

-Distance is a scalar quantity that measures the total length of the path traveled by an object
-Displacement is a vector quantity that is the straight-line distance and direction from the starting point to the ending point of an object’s motion

Question 2

What is the difference between speed and velocity?

Answer 2

-Speed is a scalar quantity that measures how fast an object is moving without regard to direction
-Velocity is a vector quantity that measures how fast an object is moving in a specific direction

Question 3

How can an object have a constant speed but a changing velocity?

Answer 3

when it changes direction while maintaining the same speed, such as when moving in a circular path

Question 4

What formula can you use to measure the speed of an object moving at a constant speed?

Answer 4

Distance travelled (m) = speed (m/s) x time (s)

Question 5

What is the typical speed for a person walking?

Answer 5

1.5 m/s

Question 6

What is the typical speed for a car?

Answer 6

25 m/s

Question 7

What is the typical speed for a person running?

Answer 7

3 m/s

Question 8

What is the typical speed for a train?

Answer 8

30 m/s

Question 9

What is the typical speed for a person cycling?

Answer 9

6 m/s

Question 10

What is the typical speed for a plane?

Answer 10

250 m/s

Question 11

What factors can affect the speed of a person walking, running, or cycling?

Answer 11

fitness level, age, distance traveled, terrain (the type of land their moving over e.g. roads, fields) etc.

Question 12

How does the speed of sound vary?

Answer 12

The speed of sound varies depending on what sound waves it travels through, with a typical speed of 330 m/s in air.

Question 13

What factors affect wind speed?

Answer 13

temperature, atmospheric pressure, nearby structures (such as buildings or forests) etc.