Distance, displacement , speed and velocity

Question 1

Distance is a …. Displacement is a ….

Answer 1

• scalar
• vector

Question 2

Difference of speed and velocity

Answer 2

• Speed is how fast you’re going without any regard of direction , ( scalar)
• Velocity is speed in a given direction (vector)

Question 3

Equation for speed

Answer 3

s(m/s)=d(m)/t (s)

Question 4

Speed in which people walk, run or cycle

Answer 4

walk= 1.5 m/s
Run = 3 m/s
Cycle = 6 m/s

Question 5

Speed of car, train and plane

Answer 5

Car = 25 m/s
Train = 30 m/s
Plane = 250 m/s

Question 6

Things that affect the speed of a person

Answer 6

• fitness, age and distance travelled and also terrain

Question 7

Things that affect the speed of a object

Answer 7

• Speed of sound (330 m/s) changes depending on what the sound waves are travelling through and the speed of wind is affected by many factors
• temp
• atmospheric pressure
• if there’s large structures nearby