5.7 Distance, Displacement, Speed And Velocity Flashcards
What is distance?
A scalar quantity that shows how far an object has moved
What is displacement?
A vector quantity that measures the distance and direction from an object starting point to finishing point
What is speed ?
How fast you’re going
What is velocity ?
Speed in a given direction
What happens if you walk 5 m north then 5m south
Distance - 10m displacement - 0m
Because of speed and velocity what is possible for an objects ?
To travel at a constant speed with a changing velocity
What is an example of an object having a constant speed but changing velocity?
Object moving in a circle
Speed equation (seventeen)
S= vt Distance = speed x time
Typical speeds
Person walking -1.5 Running - 3 Cycling - 6 Car - 25 Train - 30 Plane - 250
What affects the speed of sound
The sound waves they’re travelling through
What can affect wind speed
Temperature , atmospheric pressure