Forces and Speed Flashcards
what is the force that slows you down when flying in a plane?
Air resistance (drag)
What force keeps you afloat in water?
Up thrust
what force pulls you down when skydiving?
Gravity
what force slows you down when you are driving in a car?
Friction
what is the driving force?
The force that it pushing or pulling something.
what is a Newton
The unit used to measure force (N)
what is Mass
The amount of matter (Stuff) thst something is made of
what is Weight
the force of gravity on an object due to its mass
What is water resistance?
The force on an object moving through water that causes it to slow down (drag)
what are balanced forces
when two opposite forces on an object are balanced, therefor the object is staying still or is moving at a constant speed.
What is a newton meter?
a piece of scientific equipment used to measure weight in Newtons
What is extension
the amount that an object gets longer when a force is applied
Hooke’s law
the law that says that when you double the amount of force applied on an object the amount of extension doubles as well.
compress
to squash into a smaller space
resistive force
any force that act to slow down a moving object
streamlined
shaped to reduce resistance to motion from air or water.
deform
to change shape
Reaction
the support force provided by a solid surface like a floor
tension
a stretching force
field
a region where something feels a force
what is the weight equation
weight = mass x gravitational field strength
what is speed
speed = distance divided by time
