Speed Flashcards
How do you find the distance
Speed x time
How do you find the time
Distance/speed
What is speed
How far you travel in minutes, seconds or hours
What forces keep boats floating?
Weight of boat
Upthrust of water
(Water resistance)
What force keep us from sinking into the ground?
Reaction force
What is streamlining
The more streamlining, the less air resistance
How does streamlining work?
Since there are less air particles for the object to collide with, it goes faster
How and why are rugby balls streamlined?
Shaped like an “egg” (pointy) so that it can easily cut through the wind with the air going around it for it to be caught faster.
What is weight?
Gravity x mass
Arrows in opposite are ______ if the forces are balanced
The same size
Name 5 forces
Weight, Upthrust, friction, reaction force,air resistance
If the line is straight (horizontal or diagonal) on a distance time graph then the speed is _____
Constant
How do you find speed
Distance/time
